Button structure of current overload protector

Abstract

The utility model discloses a button structure of a current overload protector, which comprises a body, an installation cavity is arranged in the body, an overload protection unit is arranged in the installation cavity, a switch unit used for pushing the overload protection unit to be bent and electrified is further arranged in the installation cavity, and the switch unit is movably arranged on the upper portion of the overload protection unit. The switch unit is sleeved with a spring close to the bottom, the switch unit comprises a pushing piece facilitating spring assembly and a button sleeving the top of the pushing piece, and the pushing piece and the button are connected in a split mode. According to the utility model, the structure design is reasonable, the switch unit is designed in a split manner, the push member and the button sleeved on the push member are separately arranged, and the spring is sleeved on the push member, so that the spring is convenient to assemble, the switch unit is convenient to integrally assemble in the body, and the assembly time is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of overload protector, especially a button structure of current overload protector. BACKGROUND

[0002] Many electrical equipment in the process of use, will appear because the load is too large, line short circuit, equipment insulation aging and cause line current is too large, when line current is too large, continue to use the equipment, will lead to its heat even burn, if the line is under the action of strong electricity for a long time, will also reduce the insulation performance of line or burn the line.

[0003] Therefore, the electrical equipment generally will be in series overload protector, in the electrical equipment running process appears abnormal situation leads to current is too large, the excessive current will make the line temperature rise, the bimetallic strip in the overload protector will change due to heat, the action of deformation makes the movable contact of bimetallic strip and static contact separate, thereby making the loop of equipment disconnect, avoid electrical equipment long time under the operation of excessive current, reach the purpose of protecting electrical equipment.

[0004] In the existing overload protector, when the bimetallic strip is disconnected from the terminal unit due to current load, the user needs to make the current flow again, needs to press the switch unit to make the bimetallic strip bend again and electrically connected with the terminal unit to realize power on, the existing switch unit is provided with a spring, but most of the switch units are integrally formed, which is not convenient for the installation of the spring and the assembly of the switch unit as a whole. UTILITY MODEL CONTENTS

[0005] The utility model solves the technical problem in the prior art, and provides a button structure of current overload protector.

[0006] The utility model adopts the technical scheme that the button structure of current overload protector comprises a body, the body is provided with an installation cavity, an overload protection unit is arranged in the installation cavity, a switch unit for pushing the overload protection unit to bend and power on is further arranged in the installation cavity, and the switch unit is movably arranged at the upper portion of the overload protection unit.

[0007] Preferably, the bottom portion of the pushing piece is integrally connected with a heat-resistant metal block structure, one end of the spring is in abutment connection with the inner wall of the installation cavity, and the other end of the spring is in abutment connection with the surface of the pin.

[0008] Preferably, the pusher comprises a main body in the shape of a cylindrical boss, a first connecting column extending upwardly at the top of the main body, and a button sleeve arranged on the first connecting column; a second connecting column extending downwardly at the bottom of the main body, a third connecting column extending downwardly at the bottom of the second connecting column, and a heat-resistant metal block structure arranged at the bottom of the third connecting column.

[0009] Preferably, the spring is sleeved on the third connecting column, the third connecting column is provided with a socket at the bottom thereof, a pin is inserted into the pusher through the socket, and the top of the heat-resistant metal block structure is in abutment connection with the bottom of the third connecting column.

[0010] Preferably, the mounting cavity is provided with a partition plate, the partition plate is provided with a through hole for passing through the third connecting column, the third connecting column passes through the through hole and extends towards the overload protection unit, and the second connecting column is arranged at the upper portion of the through hole.

[0011] Preferably, the first connecting column is arranged outside the body, the second connecting column and the third connecting column are arranged in the mounting cavity, and the switch unit is provided with a sleeve shell for preventing the switch unit from shaking.

[0012] Preferably, the mounting cavity is further provided with a terminal unit electrically matched with the overload protection unit, and the terminal unit is arranged at the lower portion of the overload protection unit.

[0013] Compared with the prior art, the utility model has the advantages that the switch unit is designed in a split body, the pusher and the button sleeved on the pusher are arranged, the spring is sleeved on the pusher, the assembly of the spring is facilitated, the overall assembly of the switch unit into the body is facilitated, and the assembly time is saved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 is the structural schematic diagram of the utility model;

[0015] Fig. 2 is the exploded structural schematic diagram of the utility model;

[0016] Fig. 3 is the exploded structural schematic diagram of the utility model;

[0017] Fig. 4 is the structural schematic diagram of the pusher of the utility model.

[0018] Fig. 1 is a body; 2, a mounting cavity; 3, an overload protection unit; 4, a spring; 5, a pusher; 6, a button; 7, a pin; 8, a heat-resistant metal block structure; 9, a main body; 10, a first connecting column; 11, a second connecting column; 12, a third connecting column; 13, a socket; 14, a partition plate; 15, a through hole; 16, a sleeve shell; 17, a terminal unit. DETAILED DESCRIPTION

[0019] The embodiments of the present application will be described herein below with reference to drawings. Numerous specific details will be set forth in the following description in order to provide a thorough understanding of the application. However, it will be appreciated that the application can be practiced without specific details and with other methods, components, etc. In other instances, well-known structures and components are not described in detail in order to avoid obscuring the application.

[0020] It should be noted that all directional indications, such as upper, lower, left, right, front, rear, etc., are merely used for convenience of description and are not intended to limit the application. If the specific attitude changes, the directional indications also change accordingly.

[0021] In addition, in addition to being used to indicate the orientation or positional relationship, the above-mentioned terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain dependent relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in the present application can be understood according to the specific circumstances.

[0022] In addition, the terms "mounting", "setting", "providing", "connecting", "connecting", "sleeving" should be understood broadly. For example, it can be fixedly connected, detachably connected, or integrally configured; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium, or it can be the internal communication between two devices, elements or components. The connection mode involved in this paper is prior art and does not make any improvement, and belongs to the common technical knowledge of those skilled in the art. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0023] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and does not mean to specially indicate the order or sequence, nor to limit the present application. It is only to distinguish the components or operations described by the same technical terms, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of those skilled in the art. When the combination of technical solutions contradicts each other or cannot be realized, it should be considered that the combination of technical solutions does not exist and is not within the protection scope required by the present application.

[0024] For example, Figs. 1 to 4The utility model provides a button structure of current overload protector, including body 1, it is installation cavity 2 in body 1, be equipped with overload protection unit 3 in installation cavity 2, specific, still be equipped with the switch unit for pushing overload protection unit 3 to bend through electricity in installation cavity 2, switch unit is arranged in the upper portion of overload protection unit 3, switch unit is equipped with spring 4 close to bottom, switch unit includes the pusher 5 of convenient spring 4 assembly and the button 6 of the sleeve set in the top of pusher 5, and pusher 5 and button 6 split body connection.

[0025] The material of the button 6 is plastic, which plays an insulating role.

[0026] The bottom of the pusher 5 is splitly connected with a pin 7, and the bottom of the pin 7 is integrally connected with a heat-resistant metal block structure 8; specifically, one end of the spring 4 is in abutting connection with the inner wall of the installation cavity 2, and the other end of the spring 4 is in abutting connection with the surface of the pin 7.

[0027] The pusher 5 includes a main body 9, which is in the shape of a cylindrical boss, and the top of the main body 9 extends upward to be provided with a first connecting column 10, and the button 6 is sleeved on the first connecting column 10; specifically, the bottom of the main body 9 extends downward to be provided with a second connecting column 11, and the bottom of the second connecting column 11 extends downward to be provided with a third connecting column 12, and the heat-resistant metal block structure 8 is arranged at the bottom of the third connecting column 12. By arranging the heat-resistant metal block structure 8, the switch unit can withstand high temperature, avoiding damage to the switch unit, greatly improving the stability of use and reducing the use cost.

[0028] The spring 4 is sleeved on the third connecting column 12, and the bottom of the third connecting column 12 is provided with a insertion hole 13; specifically, the pin 7 is inserted into the inside of the pusher 5 through the insertion hole 13, and the top of the heat-resistant metal block structure 8 is in abutting connection with the bottom of the third connecting column 12.

[0029] The installation cavity 2 is provided with a partition piece 14, and the partition piece 14 is provided with a through hole 15 for passing through the third connecting column 12; specifically, the third connecting column 12 passes through the through hole 15 and extends towards the overload protection unit 3, and the second connecting column 11 is arranged at the upper portion of the through hole 15.

[0030] The first connecting column 10 is arranged outside the body 1, and the second connecting column 11 and the third connecting column 12 are arranged in the installation cavity 2; specifically, the switch unit is sleeved with a sleeve shell 16 for preventing the switch unit from shaking.

[0031] The installation cavity 2 is further provided with a terminal unit 17 electrically matched with the overload protection unit 3, and the terminal unit 17 is arranged at the lower portion of the overload protection unit 3.

[0032] The assembling process of the switch unit is as follows: the third connecting column 12 of the pushing piece 5 is inserted into the mounting cavity 2, the third connecting column 12 passes through the through hole 15 on the partition piece 14, the bottom surface of the second connecting column 11 is in abutting connection with the top surface of the partition piece 14, the spring 4 is sleeved on the third connecting column 12 from bottom to top until the top of the spring 4 is in abutting connection with the partition piece 14, the pin 7 is inserted into the pushing piece 5 through the insertion hole 13 at the bottom of the third connecting column 12 until the pin 7 is completely inserted into the pushing piece 5, the top surface of the heat-resistant metal block structure 8 is in abutting connection with the bottom of the third connecting column 12, the bottom end of the spring 4 is in abutting connection with the heat-resistant metal block structure 8, the button 6 is sleeved on the first connecting column 10, and finally the sleeve shell 16 is sleeved on the outside of the switch unit, thereby preventing the switch unit from shaking. The user presses the button 6 downward, the switch unit moves downward as a whole, the heat-resistant metal block structure 8 and the overload protection unit 3 are in abutting connection and push the overload protection unit 3 to be bent, and the overload protection unit 3 and the terminal unit 17 are in electrically connected again.

[0033] The utility model discloses the advantages lie in: through the switch unit split design, set apart pushing piece 5 and the button 6 of setting apart on pushing piece 5, spring 4 is sleeved on pushing piece 5, the assembly of spring 4 is convenient, and the whole switch unit is assembled into the body 1 simultaneously, and the assembly time is saved.

[0034] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, the skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples without contradiction.

[0035] The standard parts used in the utility model can be purchased from the market, and the special-shaped parts can be ordered according to the description and the drawings. The specific connection mode of each part adopts the conventional means such as bolt, rivet, welding and sticking in the prior art, which will not be described in detail here.

[0036] The above merely describes preferred embodiments of the present application, and various changes and modifications can be made to the specific implementation and application scope by those skilled in the art according to the spirit and principles of the present application, and the content of the specification should not be understood as limiting the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the scope of the claims of the present application.

Claims

1. A push button structure of an electric current overload protector comprising a body, a mounting cavity in the body, and an overload protection unit in the mounting cavity, characterized in that: The installation cavity is also provided with a switch unit for pushing the overload protection unit to bend and pass electricity, and the switch unit is movably arranged on the upper part of the overload protection unit; The switch unit is sleeved with a spring near the bottom, and the switch unit comprises a pushing piece facilitating assembly of the spring and a button sleeved on the top of the pushing piece, and the pushing piece and the button are connected in a split manner.

2. A push button structure for a current overload protector according to claim 1, wherein: The bottom of the pushing piece is inserted with a pin, the bottom of the pin is integrally connected with a heat-resistant metal block structure, one end of the spring is in abutting connection with the inner wall of the installation cavity, and the other end of the spring is in abutting connection with the surface of the pin.

3. A push button structure for a current overload protector according to claim 2, wherein: The pushing piece comprises a main body, the main body is in a cylindrical boss shape, a first connecting column is upwardly extended on the top of the main body, and the button is sleeved on the first connecting column; a second connecting column is downwardly extended on the bottom of the main body, a third connecting column is downwardly extended on the bottom of the second connecting column, and the heat-resistant metal block structure is arranged on the bottom of the third connecting column.

4. A push button structure for a current overload protector according to claim 3, wherein: The spring is sleeved on the third connecting column, the bottom of the third connecting column is provided with a insertion hole, the pin is inserted into the inside of the pushing piece through the insertion hole, and the top of the heat-resistant metal block structure is in abutting connection with the bottom of the third connecting column.

5. The button structure of a current overload protector according to claim 3, wherein: The installation cavity is provided with a partition piece, the partition piece is provided with a through hole for passing through the third connecting column, the third connecting column passes through the through hole and extends towards the direction of the overload protection unit, and the second connecting column is arranged on the upper part of the through hole.

6. The button structure of a current overload protector according to claim 3, wherein: The first connecting column is arranged outside the main body, the second connecting column and the third connecting column are arranged in the installation cavity, and the switch unit is sleeved with a shell for preventing shaking of the switch unit.

7. The button structure of a current overload protector according to claim 1, wherein: The installation cavity is also provided with a terminal unit electrically matched with the overload protection unit, and the terminal unit is arranged on the lower part of the overload protection unit.

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