CN215342385U

CN215342385U - Overload protector

Info

Publication number: CN215342385U
Application number: CN202120681515.8U
Authority: CN
Inventors: 傅群
Original assignee: Hangzhou Dongchan Temperature Control Equipment Co Ltd
Current assignee: Hangzhou Dongchan Temperature Control Equipment Co Ltd
Priority date: 2021-04-02
Filing date: 2021-04-02
Publication date: 2021-12-28
Anticipated expiration: 2031-04-02

Abstract

The utility model discloses an overload protector, and aims to provide an overload protector which is compact in structure and high in strength. It includes the shell, the surface of shell is equipped with the button spout, sliding connection has the button in the button spout, be equipped with side recess one on the lateral wall of button, be equipped with on the inside wall of button spout with side recess a assorted side recess two, side recess one and side recess two form the spring cavity jointly, install spacing spring in the spring cavity, the internally mounted of shell has elastic conducting strip, the side of elastic conducting strip is arranged in to the button. The utility model has the beneficial effects that: the structure is compact, the space is saved, and the strength is high; the material cost is reduced; simple structure, convenient processing and assembly, labour saving and time saving.

Description

Overload protector

Technical Field

The utility model relates to the technical field related to circuit protection, in particular to an overload protector.

Background

Overload protection is an overload protection device that is added to prevent the main power line from being damaged by overheating due to overload. Overload is a broad term that can refer to an electrical device that is overloaded or to an object that is subjected to an excessive force. Protection against these "load" exceeding behaviors is collectively referred to as overload protection. In a communication power supply system, a function of automatically disconnecting power supply from a power supply device due to an excessive load is called overload protection.

When the circuit is not overloaded, the button switch on the overload protector can be in a free loose state, and at present, a method which is usually adopted for solving the problem is to sleeve a large-size spring outside a button column, and press the whole button switch on a shell of the overload protector to limit through the spring so as to prevent the button switch from being freely loosened. This requires an annular chamber on the overload protector outside the button post for the spring to rest on. This results in a reduction in the compactness and strength of the overall structure of the overload protector.

SUMMERY OF THE UTILITY MODEL

The utility model provides an overload protector with compact structure and high strength, aiming at overcoming the defects of low structure compactness and low strength in the prior art.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides an overload protector, includes the shell, the surface of shell is equipped with the button spout, sliding connection has the button in the button spout, be equipped with side recess one on the lateral wall of button, be equipped with on the inside wall of button spout with side recess one assorted side recess two, side recess one and side recess two form the spring cavity jointly, install spacing spring in the spring cavity, the internally mounted of shell has elastic conducting strip, elastic conducting strip's side is arranged in to the button.

When the equipment is overloaded, the elastic conducting sheet can break a circuit through automatic deformation so as to protect the safety of the equipment; when the overload state is relieved, the user can press the button to reset the elastic conducting strip and then switch on the circuit again. And under the state of not transshipping, through the design of spacing spring, played certain restriction effect to the position of button, prevent that the button from freely moving in the button spout. Wherein, one part of the limiting spring is positioned in the first side groove, and the other part of the limiting spring is positioned in the second side groove, so that the structure is compact, the space is saved, and the strength is high. Compared with the existing large spring sleeved outside the button, the small-sized spring can be selected for the scheme, so that the material cost is reduced.

Preferably, be equipped with the side spout on the inside wall of button spout, be fixed with the limiting plate that matches with the side spout on the button, the limiting plate is arranged in the side spout and with side spout sliding connection. Through the design of side spout and limiting plate, the displacement volume of button in the button spout has been injectd.

Preferably, the shell is composed of a first shell flap and a second shell flap which are matched with each other, a plurality of fixing columns are fixed on the side face of the first shell flap, fixing column mounting grooves matched with the fixing columns are formed in the second shell flap, and the first shell flap is fixedly connected with the second shell flap through interference fit of the fixing columns and the fixing column mounting grooves. Simple structure, convenient processing and assembly.

Preferably, the end face of one end of the fixing column is fixedly connected with the first shell flap, a chamfer is arranged at the end part of the other end of the fixing column, and the diameter of one end of the fixing column is larger than that of the other end of the fixing column. The smoothness of the fixing column in the process of inserting the fixing column mounting groove is improved, so that the operation is simple and convenient, and time and labor are saved.

Preferably, a shell cavity is formed between the first shell flap and the second shell flap, the elastic conducting strip is installed in the shell cavity, a connecting through hole is formed between the bottom surface of the button sliding groove and the side wall of the shell cavity, a pressing head matched with the connecting through hole is fixed on the button, the pressing head penetrates through the connecting through hole and is arranged in the shell cavity, the pressing head is in sliding connection with the connecting through hole, and the pressing head is arranged on one surface of the elastic conducting strip. When the overload state is relieved, a user can press the button to drive the pressing head on the button to press the elastic conducting strip, so that the deformed elastic conducting strip is reset, and the circuit is switched on again.

Preferably, the side wall of the cavity of the shell is provided with a first pin and a second pin, one end of the first pin is arranged in the cavity of the shell and is in contact with the elastic conducting strip, one end of the second pin is arranged in the cavity of the shell and is positioned on the other surface of the elastic conducting strip, and the other end of the first pin and the other end of the second pin are both arranged outside the shell. The overload protector is installed between a power supply and equipment through a first pin and a second pin. When the overload is not generated, the elastic conducting sheet is contacted with the pin two phases, and the whole circuit is in a state of a path. When the equipment is overloaded, the elastic conducting strip is automatically deformed, is separated from the pin II and is close to one side of the pressing head so as to protect the safety of the equipment.

The utility model has the beneficial effects that: the structure is compact, the space is saved, and the strength is high; the material cost is reduced; simple structure, convenient processing and assembly, labour saving and time saving.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a front view of FIG. 1;

FIG. 3 is a left side view of FIG. 1;

FIG. 4 is a top view of FIG. 1;

FIG. 5 is a schematic structural diagram of a first shell valve of FIG. 1;

fig. 6 is a cross-sectional view at a-a in fig. 3.

In the figure: 1. the novel electronic lock comprises a shell, 2 parts of a button, 3 parts of a shell clack II, 4 parts of a shell clack I, 5 parts of chamfers, 6 parts of fixing columns, 7 parts of a side groove II, 8 parts of a limiting spring, 9 parts of a side groove I, 10 parts of a button sliding groove, 11 parts of a fixing column installing groove, 12 parts of an elastic conducting strip, 13 parts of a shell cavity, 14 parts of a pin II, 15 parts of a pin I, 16 parts of a pressing head, 17 parts of a connecting through hole, 18 parts of a limiting plate and 19 parts of a side sliding groove.

Detailed Description

The utility model is further described with reference to the following figures and detailed description.

In the embodiment shown in fig. 1 to 4, an overload protector includes a housing 1, as shown in fig. 6, a button sliding groove 10 is provided on a surface of the housing 1, a button 2 is slidably connected to the button sliding groove 10, a first side groove 9 is provided on an outer side wall of the button 2, a second side groove 7 matched with the first side groove 9 is provided on an inner side wall of the button sliding groove 10, the first side groove 9 and the second side groove 7 together form a spring cavity, a limiting spring 8 is installed in the spring cavity, an elastic conductive sheet 12 is installed inside the housing 1, and the button 2 is disposed on a side surface of the elastic conductive sheet 12.

As shown in fig. 6, a side sliding groove 19 is provided on an inner side wall of the button sliding groove 10, a limit plate 18 matching with the side sliding groove 19 is fixed on the button 2, and the limit plate 18 is disposed in the side sliding groove 19 and slidably connected with the side sliding groove 19.

As shown in fig. 1 and 3, the housing 1 is composed of a first shell flap 4 and a second shell flap 3 which are matched with each other, as shown in fig. 5 and 6, a plurality of fixing posts 6 are fixed on the side surface of the first shell flap 4, fixing post mounting grooves 11 matched with the fixing posts 6 are arranged on the second shell flap 3, and the first shell flap 4 is fixedly connected with the second shell flap 3 through interference fit of the fixing posts 6 and the fixing post mounting grooves 11.

As shown in fig. 5, the end face of one end of the fixing column 6 is fixedly connected with the first shell flap 4, the end part of the other end of the fixing column 6 is provided with a chamfer 5, and the diameter of one end of the fixing column 6 is larger than that of the other end of the fixing column 6.

As shown in fig. 6, a housing cavity 13 is formed between the first shell flap 4 and the second shell flap 3, the elastic conductive sheet 12 is installed in the housing cavity 13, a connecting through hole 17 is formed between the bottom surface of the button sliding groove 10 and the side wall of the housing cavity 13, a pressing head 16 matched with the connecting through hole 17 is fixed on the button 2, the pressing head 16 penetrates through the connecting through hole 17 and is placed inside the housing cavity 13, the pressing head 16 is slidably connected with the connecting through hole 17, and the pressing head 16 is placed on one surface of the elastic conductive sheet 12.

As shown in fig. 6, a first pin 15 and a second pin 14 are mounted on the side wall of the housing cavity 13, one end of the first pin 15 is disposed inside the housing cavity 13 and is in contact with the elastic conductive sheet 12, one end of the second pin 14 is disposed inside the housing cavity 13 and is located on the other side of the elastic conductive sheet 12, and the other end of the first pin 15 and the other end of the second pin 14 are both disposed outside the housing 1.

The working principle is as follows: when the overload is not applied, the elastic conducting strip 12 is in contact with the second pin 14, and the whole circuit is in a closed state. When the device is overloaded, the elastic conductive sheet 12 is automatically deformed, separated from the second pin 14, and approaches to one side of the pressing head 16. When the overload state is relieved, the user can press the button 2 to drive the pressing head 16 on the button 2 to press the elastic conducting strip 12, so that the deformed elastic conducting strip 12 is reset and is contacted with the second pin 14 again to connect the circuit.

In the non-overload state, the button 2 in the button sliding groove 10 is limited by the limiting spring 8 in the spring cavity (composed of the first side groove 9 and the second side groove 7), and relative movement cannot occur.

Claims

1. The utility model provides an overload protector, characterized by, includes shell (1), the surface of shell (1) is equipped with button spout (10), sliding connection has button (2) in button spout (10), be equipped with side recess (9) on the lateral wall of button (2), be equipped with on the inside wall of button spout (10) with side recess (9) assorted side recess two (7), side recess (9) and side recess two (7) form the spring cavity jointly, install spacing spring (8) in the spring cavity, the internally mounted of shell (1) has elastic conducting strip (12), the side of elastic conducting strip (12) is arranged in to button (2).

2. An overload protector according to claim 1, wherein the inner side wall of the button sliding groove (10) is provided with a side sliding groove (19), the button (2) is fixed with a limit plate (18) matched with the side sliding groove (19), and the limit plate (18) is arranged in the side sliding groove (19) and is connected with the side sliding groove (19) in a sliding manner.

3. The overload protector as claimed in claim 1, wherein the housing (1) is composed of a first shell (4) and a second shell (3) which are matched with each other, a plurality of fixing posts (6) are fixed on the side surface of the first shell (4), fixing post mounting grooves (11) matched with the fixing posts (6) are formed in the second shell (3), and the first shell (4) is fixedly connected with the second shell (3) through interference fit of the fixing posts (6) and the fixing post mounting grooves (11).

4. An overload protector according to claim 3 in which the end face of one end of the fixed post (6) is fixedly connected to the first shell (4), the end of the other end of the fixed post (6) is provided with a chamfer (5), and the diameter of one end of the fixed post (6) is greater than the diameter of the other end of the fixed post (6).

5. An overload protector according to claim 3, wherein a housing cavity (13) is formed between the first shell flap (4) and the second shell flap (3), the elastic conductive sheet (12) is installed in the housing cavity (13), a connecting through hole (17) is formed between the bottom surface of the button sliding groove (10) and the side wall of the housing cavity (13), a pressing head (16) matched with the connecting through hole (17) is fixed on the button (2), the pressing head (16) penetrates through the connecting through hole (17) and is arranged in the housing cavity (13), the pressing head (16) is connected with the connecting through hole (17) in a sliding mode, and the pressing head (16) is arranged on one surface of the elastic conductive sheet (12).

6. The overload protector according to claim 5, wherein a first pin (15) and a second pin (14) are mounted on a side wall of the housing cavity (13), one end of the first pin (15) is arranged inside the housing cavity (13) and is in contact with the elastic conducting plate (12), one end of the second pin (14) is arranged inside the housing cavity (13) and is located on the other side of the elastic conducting plate (12), and the other end of the first pin (15) and the other end of the second pin (14) are both arranged outside the housing (1).