Microswitch for charging pile

Abstract

The utility model relates to a microswitch for a charging pile. The key points of the technical scheme are that the microswitch comprises a housing; a switching assembly is arranged in the shell; an elastic bracket is arranged in the shell; a pressing assembly is arranged on the shell; a waterproof assembly correspondingly matched with the pressing assembly is arranged on the shell; the elastic bracket comprises a connecting part; the connecting part is arranged on the switching assembly; a pressing part is arranged at one end of the connecting part and abuts against the pressing assembly. Two supporting rod parts are symmetrically arranged on the two sides of the other end of the connecting part. The two supporting rod parts abut against the switching assembly. When the pressing part is extruded, the two supporting rod parts synchronously deform and support the pressing part, and the connection stability of the pressing part and the pressing assembly and the connection stability of the supporting rod parts and the switching assembly can be ensured during pressing.

Description

Technical Field

[0001] The utility model relates to the technical field of switches, and more specifically, to a micro switch for a charging pile. Background Art

[0002] A microswitch uses external mechanical force to apply force to an actuating reed through a transmission element such as a button. When the actuating reed reaches a critical point, it instantly actuates, rapidly connecting or disconnecting the moving contact at the end of the actuating reed and the fixed contact. However, because the button is telescopically mounted within the microswitch housing and is partially exposed, moisture can easily enter the microswitch through the gap between the button and the microswitch housing, corroding the internal components and affecting circuit continuity.

[0003] Existing micro switches, such as the utility model patent with patent application number 2017206064913, disclose a micro switch, including a shell and a first terminal, a second terminal, a movable spring, an elastic connector, a button and an annular waterproof cap arranged on the shell. The shell has an accommodating space for accommodating the first terminal, the second terminal, the movable spring, and the elastic connector, a button groove connected to the accommodating space, and a waterproof groove connected to the outer end of the button groove. The first terminal and the second terminal extend out of the shell respectively, the elastic connector is connected between the movable spring and the first terminal, the button can be telescopically positioned in the button groove, and the waterproof cap is tightly fitted on the button and embedded in the waterproof groove.

[0004] The micro switch in the existing technology has a long elastic bracket inside and poor sensitivity. The elastic bracket is connected to the main body by only one support rod. After long-term use, the elastic bracket cannot stably support the button, movable spring, and spring, posing a quality risk of the switch falling apart. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a micro switch for a charging pile to solve the above technical problems.

[0006] The above technical purpose of the present utility model is achieved through the following technical solutions: A micro switch for a charging pile, comprising: a shell; a switching component is arranged in the shell; an elastic bracket is arranged in the shell; a pressing component is arranged on the shell; a waterproof component corresponding to the pressing component is arranged on the shell; the elastic bracket includes a connecting part; the connecting part is arranged on the switching component; a pressing part is provided at one end of the connecting part, and the pressing part abuts against the pressing component; two support rods are symmetrically provided on both sides of the other end of the connecting part; both of the support rods abut against the switching component.

[0007] After the pressing assembly is squeezed, the pressing assembly pushes the pressing part, and the support rod part rotates around the abutment between it and the switching assembly, and drives the switching assembly to switch the switch state. Since the switching assembly is connected to the pressing part through two support rod parts, when the pressing part is squeezed, the two support rod parts are deformed synchronously and provide support for the pressing part, which can ensure the stability of the connection between the pressing part and the pressing assembly, and the support rod part and the switching assembly when pressing.

[0008] Optionally, the switching component includes: a connecting spring and a movable spring; one end of the connecting spring is fixed to the connecting part, and the other end is fixed to the movable spring; a fixed terminal, a normally open terminal and a normally closed terminal are provided on the shell; both of the support rods are in contact with the fixed terminal; one end of the movable spring is in contact with the fixed terminal; when the pressing component is not pressed, the other end of the movable spring is in contact with the normally closed terminal; when the pressing component is pressed, the other end of the movable spring is in contact with the normally open terminal.

[0009] After the pressing assembly is squeezed, the pressing assembly pushes the pressing portion, which drives the connecting portion to move around the contact point between the support rod and the fixed terminal. The connecting portion pulls the connecting spring, which drives the movable spring to move, causing the other end of the movable spring to separate from the normally closed terminal. After moving a certain distance, the other end of the movable spring contacts the normally open terminal, at which point the fixed terminal is electrically connected to the normally open terminal via the movable spring. After the pressing assembly is no longer squeezed, the support rod pushes the pressing portion to reset, causing the connecting spring to reset, and causing the other end of the movable spring to separate from the normally open terminal and contact the normally closed terminal. At this point, the fixed terminal is electrically connected to the normally closed terminal via the movable spring.

[0010] The normally closed terminal, normally open terminal, fixed terminal and pressing assembly are arranged in sequence in the shell. One end of the elastic bracket abuts the fixed terminal, and the other end abuts the pressing assembly. Therefore, the overall deformation requirement of the elastic bracket is relatively small. Therefore, a high pressing stroke of more than 3mm can be achieved.

[0011] Optionally, a normally open contact corresponding to the movable spring is provided on the normally open terminal.

[0012] The movable spring contacts the normally open contact and conducts electricity between the fixed terminal and the normally open terminal. By providing the normally open contact on the normally open terminal, the contact sensitivity between the movable spring and the normally open terminal can be improved.

[0013] Optionally, a normally closed contact corresponding to the movable spring is provided on the normally closed terminal.

[0014] The movable spring contacts the normally closed contact and conducts electricity between the fixed terminal and the normally closed terminal. By providing the normally closed contact on the normally closed terminal, the contact sensitivity between the movable spring and the normally closed terminal can be improved.

[0015] Optionally, a spring contact is provided on the movable spring.

[0016] By providing the spring contact, the movable spring can contact the normally open contact and the normally closed contact respectively through the spring contact, further improving the conduction performance between the movable spring and the normally open terminal and the normally closed terminal.

[0017] Optionally, the pressing assembly includes: a transmission column; the waterproof assembly is arranged on the transmission column; a pressing head is provided at one end of the transmission column, and a guide block is provided at the other end of the transmission column; a guide groove corresponding to the guide block is opened on the shell; and the pressing part abuts against the transmission column.

[0018] When the pressing head is pressed, it drives the transmission column downward, and the transmission column pushes the pressing part to move, thus switching the micro switch. The guide groove and guide block are provided to make the movement of the transmission column more stable.

[0019] Optionally, a limit block is provided on the transmission column.

[0020] By providing a limit block, the moving distance of the transmission column can be limited to prevent the transmission column from excessively squeezing the pressing portion.

[0021] Optionally, the waterproof component includes: a sealing ring and a sealing ring; one end of the sealing ring is sleeved on the transmission column; the other end of the sealing ring is embedded in the shell; and the sealing ring is sleeved on the sealing ring.

[0022] By providing a sealing ring wrapped around the outside of the transmission column and embedding one end of the sealing ring into the housing, the connection between the transmission column and the housing can be sealed, preventing moisture or dust from entering the micro switch through the gap between the transmission column and the housing, thereby improving the waterproof reliability of the micro switch. A sealing ring is also provided on the sealing ring to further seal the connection between the sealing ring and the housing.

[0023] Optionally, the sealing ring includes a crimping portion and an overlapping portion; the overlapping portion overlaps the outer wall of the shell; and the crimping portion presses against one end of the sealing ring embedded in the shell.

[0024] The sealing ring is clamped on the housing through the crimping part and the overlapping part, and the crimping part is pressed against the outer wall of the sealing ring to ensure that the connection between the sealing ring and the housing is sealed, preventing water vapor or dust from entering the micro switch through the gap between the sealing ring and the housing, thereby improving the waterproof reliability of the micro switch.

[0025] In summary, the present invention has the following beneficial effects:

[0026] After the pressing assembly is squeezed, the pressing assembly pushes the pressing part, and the support rod part rotates around the abutment between it and the switching assembly, and drives the switching assembly to switch the switch state. Since the switching assembly is connected to the pressing part through two support rod parts, when the pressing part is squeezed, the two support rod parts are deformed synchronously and provide support for the pressing part, which can ensure the stability of the connection between the pressing part and the pressing assembly, and the support rod part and the switching assembly when pressing. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0028] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0029] Figure 3 It is a schematic cross-sectional structural diagram of the present utility model.

[0030] In the figure: 1. Housing; 2. Switching assembly; 21. Connecting spring; 22. Moving spring; 23. Fixed terminal; 24. Normally open terminal; 25. Normally closed terminal; 3. Elastic bracket; 31. Connecting part; 32. Pressing part; 33. Support rod; 4. Pressing assembly; 41. Transmission column; 42. Pressing head; 43. Guide block; 5. Waterproof assembly; 51. Sealing ring; 52. Sealing ring; 521. Crimping part; 522. Overlapping part; 6. Normally open contact; 7. Normally closed contact; 8. Spring contact; 9. Guide groove; 10. Limit block. DETAILED DESCRIPTION

[0031] To make the objectives, features, and advantages of the present invention more readily apparent, the following detailed description of the present invention is provided with reference to the accompanying drawings. The accompanying drawings illustrate several embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein.

[0032] In the present invention, unless otherwise expressly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a communication between the two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. The terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features.

[0033] The present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0034] Example 1

[0035] This embodiment provides a micro switch for a charging pile, such as Figure 1-3 As shown, it includes: a shell 1; a switching component 2 is arranged in the shell 1; an elastic bracket 3 is arranged in the shell 1; a pressing component 4 is arranged on the shell 1; a waterproof component 5 corresponding to the pressing component 4 is arranged on the shell 1; the elastic bracket 3 includes a connecting portion 31; the connecting portion 31 is arranged on the switching component 2; a pressing portion 32 is provided at one end of the connecting portion 31, and the pressing portion 32 abuts against the pressing component 4; two support rods 33 are symmetrically provided on both sides of the other end of the connecting portion 31; both of the support rods 33 abut against the switching component 2.

[0036] After the pressing component 4 is squeezed, the pressing component 4 pushes the pressing part 32, and the support rod 33 rotates around the abutment between it and the switching component 2, and drives the switching component 2 to switch the switch state. Since the switching component 2 is connected to the pressing part 32 through the two support rods 33, when the pressing part 32 is squeezed, the two support rods 33 are deformed synchronously and provide support for the pressing part 32, which can ensure the stability of the connection between the pressing part 32 and the pressing component 4, and the support rod 33 and the switching component 2 when pressing.

[0037] Optionally, the switching component 2 includes: a connecting spring 21 and a movable spring 22; one end of the connecting spring 21 is fixed to the connecting portion 31, and the other end is fixed to the movable spring 22; a fixed terminal 23, a normally open terminal 24 and a normally closed terminal 25 are provided on the housing 1; the two support rods 33 are both in contact with the fixed terminal 23; one end of the movable spring 22 is in contact with the fixed terminal 23; when the pressing component 4 is not pressed, the other end of the movable spring 22 is in contact with the normally closed terminal 25; when the pressing component 4 is pressed, the other end of the movable spring 22 is in contact with the normally open terminal 24.

[0038] After the pressing assembly 4 is squeezed, the pressing assembly 4 pushes the pressing portion 32, which drives the connecting portion 31 to move around the contact point between the support portion 33 and the fixed terminal 23. The connecting portion 31 pulls the connecting spring 21, which drives the movable spring 22 to move, causing the other end of the movable spring 22 to separate from the normally closed terminal 25. After moving a certain distance, the other end of the movable spring 22 contacts the normally open terminal 24. At this time, the fixed terminal 23 is electrically connected to the normally open terminal 24 through the movable spring 22. After the squeezing of the pressing assembly 4 stops, the support portion 33 pushes the pressing portion 32 to return to its original position, causing the connecting spring 21 to return to its original position, and causing the other end of the movable spring 22 to separate from the normally open terminal 24 and contact the normally closed terminal 25. At this time, the fixed terminal 23 is electrically connected to the normally closed terminal 25 through the movable spring 22.

[0039] The normally closed terminal, normally open terminal, fixed terminal and pressing assembly are arranged in sequence in the shell. One end of the elastic bracket abuts the fixed terminal, and the other end abuts the pressing assembly. Therefore, the overall deformation requirement of the elastic bracket is relatively small. Therefore, a high pressing stroke of more than 3mm can be achieved.

[0040] Optionally, a normally open contact 6 corresponding to and adapted to the movable elastic piece 22 is provided on the normally open terminal 24 .

[0041] The movable spring 22 contacts the normally open contact 6 and conducts electricity between the fixed terminal 23 and the normally open terminal 24. By providing the normally open contact 6 on the normally open terminal 24, the contact sensitivity between the movable spring 22 and the normally open terminal 24 can be improved.

[0042] Optionally, a normally closed contact 7 corresponding to and adapted to the movable elastic piece 22 is provided on the normally closed terminal 25 .

[0043] The movable spring 22 contacts the normally closed contact 7 and conducts electricity between the fixed terminal 23 and the normally closed terminal 25. By providing the normally closed contact 7 on the normally closed terminal 25, the contact sensitivity between the movable spring 22 and the normally closed terminal 25 can be improved.

[0044] Optionally, a spring contact 8 is provided on the movable spring piece 22 .

[0045] By providing the spring contact 8 , the movable spring 22 can contact the normally open contact 6 and the normally closed contact 7 respectively through the spring contact 8 , further improving the conductive performance between the movable spring 22 and the normally open terminal 24 and the normally closed terminal 25 .

[0046] Optionally, the pressing assembly 4 includes: a transmission column 41; the waterproof assembly 5 is arranged on the transmission column 41; a pressing head 42 is provided at one end of the transmission column 41, and a guide block 43 is provided at the other end of the transmission column 41; a guide groove 9 corresponding to the guide block 43 is opened on the shell 1; the pressing part 32 abuts against the transmission column 41.

[0047] When the pressing head 42 is pressed, the pressing head 42 drives the transmission column 41 downward, and the transmission column 41 pushes the pressing portion 32 to move, thereby switching the micro switch. In addition, the provision of the guide slot 9 and the guide block 43 can make the movement of the transmission column 41 more stable.

[0048] Optionally, a limit block 10 is provided on the transmission column 41 .

[0049] By providing the limiting block 10 , the moving distance of the transmission column 41 can be limited to prevent the transmission column 41 from excessively pressing the pressing portion 32 .

[0050] Example 2

[0051] This embodiment provides a micro switch for a charging pile, such as Figure 1-3 As shown, it includes: a shell 1; a switching component 2 is arranged in the shell 1; an elastic bracket 3 is arranged in the shell 1; a pressing component 4 is arranged on the shell 1; a waterproof component 5 corresponding to the pressing component 4 is arranged on the shell 1; the elastic bracket 3 includes a connecting portion 31; the connecting portion 31 is arranged on the switching component 2; a pressing portion 32 is provided at one end of the connecting portion 31, and the pressing portion 32 abuts against the pressing component 4; two support rods 33 are symmetrically provided on both sides of the other end of the connecting portion 31; both of the support rods 33 abut against the switching component 2.

[0052] After the pressing component 4 is squeezed, the pressing component 4 pushes the pressing part 32, and the support rod 33 rotates around the abutment between it and the switching component 2, and drives the switching component 2 to switch the switch state. Since the switching component 2 is connected to the pressing part 32 through the two support rods 33, when the pressing part 32 is squeezed, the two support rods 33 are deformed synchronously and provide support for the pressing part 32, which can ensure the stability of the connection between the pressing part 32 and the pressing component 4, and the support rod 33 and the switching component 2 when pressing.

[0053] Optionally, the switching component 2 includes: a connecting spring 21 and a movable spring 22; one end of the connecting spring 21 is fixed to the connecting portion 31, and the other end is fixed to the movable spring 22; a fixed terminal 23, a normally open terminal 24 and a normally closed terminal 25 are provided on the housing 1; the two support rods 33 are both in contact with the fixed terminal 23; one end of the movable spring 22 is in contact with the fixed terminal 23; when the pressing component 4 is not pressed, the other end of the movable spring 22 is in contact with the normally closed terminal 25; when the pressing component 4 is pressed, the other end of the movable spring 22 is in contact with the normally open terminal 24.

[0054] After the pressing assembly 4 is squeezed, the pressing assembly 4 pushes the pressing portion 32, which drives the connecting portion 31 to move around the contact point between the support portion 33 and the fixed terminal 23. The connecting portion 31 pulls the connecting spring 21, which drives the movable spring 22 to move, causing the other end of the movable spring 22 to separate from the normally closed terminal 25. After moving a certain distance, the other end of the movable spring 22 contacts the normally open terminal 24. At this time, the fixed terminal 23 is electrically connected to the normally open terminal 24 through the movable spring 22. After the squeezing of the pressing assembly 4 stops, the support portion 33 pushes the pressing portion 32 to return to its original position, causing the connecting spring 21 to return to its original position, and causing the other end of the movable spring 22 to separate from the normally open terminal 24 and contact the normally closed terminal 25. At this time, the fixed terminal 23 is electrically connected to the normally closed terminal 25 through the movable spring 22.

[0055] The normally closed terminal, normally open terminal, fixed terminal and pressing assembly are arranged in sequence in the shell. One end of the elastic bracket abuts the fixed terminal, and the other end abuts the pressing assembly. Therefore, the overall deformation requirement of the elastic bracket is relatively small. Therefore, a high pressing stroke of more than 3mm can be achieved.

[0056] Optionally, a normally open contact 6 corresponding to and adapted to the movable elastic piece 22 is provided on the normally open terminal 24 .

[0057] The movable spring 22 contacts the normally open contact 6 and conducts electricity between the fixed terminal 23 and the normally open terminal 24. By providing the normally open contact 6 on the normally open terminal 24, the contact sensitivity between the movable spring 22 and the normally open terminal 24 can be improved.

[0058] Optionally, a normally closed contact 7 corresponding to and adapted to the movable elastic piece 22 is provided on the normally closed terminal 25 .

[0059] The movable spring 22 contacts the normally closed contact 7 and conducts electricity between the fixed terminal 23 and the normally closed terminal 25. By providing the normally closed contact 7 on the normally closed terminal 25, the contact sensitivity between the movable spring 22 and the normally closed terminal 25 can be improved.

[0060] Optionally, a spring contact 8 is provided on the movable spring piece 22 .

[0061] By providing the spring contact 8 , the movable spring 22 can contact the normally open contact 6 and the normally closed contact 7 respectively through the spring contact 8 , further improving the conductive performance between the movable spring 22 and the normally open terminal 24 and the normally closed terminal 25 .

[0062] Optionally, the pressing assembly 4 includes: a transmission column 41; the waterproof assembly 5 is arranged on the transmission column 41; a pressing head 42 is provided at one end of the transmission column 41, and a guide block 43 is provided at the other end of the transmission column 41; a guide groove 9 corresponding to the guide block 43 is opened on the shell 1; the pressing part 32 abuts against the transmission column 41.

[0063] When the pressing head 42 is pressed, the pressing head 42 drives the transmission column 41 downward, and the transmission column 41 pushes the pressing portion 32 to move, thereby switching the micro switch. In addition, the provision of the guide slot 9 and the guide block 43 can make the movement of the transmission column 41 more stable.

[0064] Optionally, a limit block 10 is provided on the transmission column 41 .

[0065] By providing the limiting block 10 , the moving distance of the transmission column 41 can be limited to prevent the transmission column 41 from excessively pressing the pressing portion 32 .

[0066] Optionally, the waterproof component 5 includes: a sealing ring 51 and a sealing ring 52; one end of the sealing ring 51 is sleeved on the transmission column 41; the other end of the sealing ring 51 is embedded in the housing 1; the sealing ring 52 is sleeved on the sealing ring 51.

[0067] By providing a sealing ring 51 wrapped around the outside of the transmission column 41 and embedding one end of the sealing ring 51 into the housing 1, the connection between the transmission column 41 and the housing 1 can be sealed, preventing moisture or dust from entering the micro switch through the gap between the transmission column 41 and the housing 1, thereby improving the waterproof reliability of the micro switch. A sealing ring 52 is also provided on the sealing ring 51 to further seal the connection between the sealing ring 51 and the housing 1.

[0068] Optionally, the sealing ring 52 includes a crimping portion 521 and an overlapping portion 522 ; the overlapping portion 522 overlaps the outer wall of the shell 1 ; and the crimping portion 521 presses against one end of the sealing ring 51 embedded in the shell 1 .

[0069] The sealing ring 52 is clamped on the housing 1 through the crimping portion 521 and the overlapping portion 522, and the crimping portion 521 is pressed against the outer wall of the sealing ring 51 to ensure that the connection between the sealing ring 51 and the housing 1 is sealed, preventing water vapor or dust from entering the micro switch through the gap between the sealing ring 51 and the housing 1, thereby improving the waterproof reliability of the micro switch.

[0070] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A micro switch for a charging pile, characterized in that: include: A shell; a switching component is arranged in the shell; an elastic bracket is arranged in the shell; a pressing component is arranged on the shell; a waterproof component corresponding to the pressing component is arranged on the shell; the elastic bracket includes a connecting portion; the connecting portion is arranged on the switching component; a pressing portion is arranged at one end of the connecting portion, and the pressing portion abuts against the pressing component; two support rods are symmetrically arranged on both sides of the other end of the connecting portion; both of the support rods abut against the switching component.

2. A micro switch for a charging pile according to claim 1, characterized in that: The switching assembly includes: a connecting spring and a movable spring; one end of the connecting spring is fixed to the connecting portion, and the other end is fixed to the movable spring; a fixed terminal, a normally open terminal and a normally closed terminal are provided on the housing; both of the support rods abut against the fixed terminal; one end of the movable spring abuts against the fixed terminal; when the pressing assembly is not pressed, the other end of the movable spring contacts and conducts with the normally closed terminal; when the pressing assembly is pressed, the other end of the movable spring contacts and conducts with the normally open terminal.

3. A micro switch for a charging pile according to claim 2, characterized in that: The normally open terminal is provided with a normally open contact corresponding to the movable elastic piece.

4. A micro switch for a charging pile according to claim 2, characterized in that: The normally closed terminal is provided with a normally closed contact corresponding to the movable elastic piece.

5. The micro switch for a charging pile according to claim 2, characterized in that: The movable elastic piece is provided with an elastic piece contact.

6. The micro switch for a charging pile according to claim 1, characterized in that: The pressing assembly includes: a transmission column; the waterproof assembly is arranged on the transmission column; a pressing head is provided at one end of the transmission column, and a guide block is provided at the other end of the transmission column; a guide groove corresponding to the guide block is opened on the shell; the pressing part abuts against the transmission column.

7. A micro switch for a charging pile according to claim 6, characterized in that: A limit block is provided on the transmission column.

8. The micro switch for a charging pile according to claim 6, characterized in that: The waterproof component includes: a sealing ring and a sealing ring; one end of the sealing ring is sleeved on the transmission column; the other end of the sealing ring is embedded in the housing; and the sealing ring is sleeved on the sealing ring.

9. The micro switch for a charging pile according to claim 8, characterized in that: The sealing ring comprises a crimping portion and an overlapping portion; the overlapping portion overlaps the outer wall of the shell; and the crimping portion is pressed tightly against one end of the sealing ring embedded in the shell.

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