An alternating current charging gun micro switch fixing device

Abstract

The utility model relates to charging gun switch technical field, and disclose an alternating current charging gun microswitch fixing device, including charging gun outer shell one and charging gun outer shell two, the inside of charging gun outer shell one and charging gun outer shell two all are fixedly installed with the mutually corresponding installation post, the inside fixed mounting of charging gun outer shell one has inner support plate, in the process of pressing the roof, the accurate embedding of the clamping concave ring of inner positioning rod bottom end and the clamping convex ring of outer positioning ring top forms the first clamping, and the operator roof preliminary alignment is accurate through the obvious buckle feedback, can continue to press down, with the roof continuous downlink, the clamping convex ring of outer positioning ring further with the second clamping concave ring on the inner positioning rod completes two clamping, realizes the stable insertion positioning of outer positioning ring and inner positioning rod, the whole assembly process does not need to help the tool, through the explicit clamping feedback ensures the installation position accuracy, and the assembly reliability is greatly improved.

Description

Technical Field

[0001] This utility model belongs to the field of charging gun switch technology, and specifically relates to a micro switch fixing device for AC charging guns. Background Technology

[0002] In the internal structure of an AC charging gun, the microswitch is a key component for accurately detecting the connection between the charging gun and the vehicle's charging interface. It senses the insertion status of the plug and socket and provides real-time feedback of the on / off signal to ensure charging safety. However, the existing installation method of the microswitch has significant drawbacks, causing considerable inconvenience to production assembly and subsequent maintenance.

[0003] On the one hand, the small size of microswitches results in extremely limited installation space. When using traditional bolts for fixing, the limited operating space makes it difficult to accurately align tools such as screwdrivers. This not only easily leads to damage to the switch housing due to improper force, but may also cause the bolts to slip and scratch the internal components of the switch, affecting the stability of signal transmission.

[0004] On the other hand, the conventional double-bolt fastening method further complicates the installation process. Operators must align, tighten, and lock the two bolts sequentially within a very small area, which is not only time-consuming but also makes it difficult to ensure that the two bolts are subjected to uniform force. If the force is unbalanced, it can easily cause the switch body to tilt, causing its trigger stroke to deviate from the design value and resulting in misjudgment of the charging status. Furthermore, during later maintenance and replacement, the disassembly of the bolts also faces the problem of limited tool operation, which significantly increases maintenance time and costs. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a micro switch fixing device for AC charging guns.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a micro switch fixing device for an AC charging gun, comprising a charging gun outer mold shell one and a charging gun outer mold shell two, wherein corresponding mounting columns are fixedly installed inside the charging gun outer mold shell one and the charging gun outer mold shell two, an inner support plate is fixedly installed inside the charging gun outer mold shell one, and side frames one and two are fixedly installed at both ends of one side of the inner support plate, and top frames one and two are respectively provided on the top of side frames one and side frames two;

[0007] An outer connecting plate is fixedly installed on one side of both top frame one and top frame two, and an inner connecting plate located on one side of the outer connecting plate is fixedly installed on the top of both side frame one and side frame two.

[0008] Preferably, the first outer mold shell of the charging gun and the second outer mold shell of the charging gun are fastened together by mounting posts and external bolts.

[0009] Preferably, a side baffle located between side frame one and side frame two is fixedly installed on one side of the inner support plate.

[0010] Preferably, a top plate is fixedly installed between the top frame one and the top frame two, and the two ends of the top plate are integrally formed with interference edges.

[0011] Preferably, a snap-fit ​​protrusion located inside the outer connecting plate is fixedly installed on one side of the inner connecting plate, and a snap-fit ​​groove for engaging with the snap-fit ​​protrusion is provided on one side of the outer connecting plate.

[0012] Preferably, an outer positioning ring is fixedly installed on one side of the inner support plate, located on the inner side of both side frame one and side frame two, and an inner positioning rod that is fixedly connected to the top plate is slidably connected to the inner side of the outer positioning ring.

[0013] Preferably, the inner side of the outer positioning ring has a positioning cavity for use in conjunction with the positioning insertion of the inner positioning rod.

[0014] Preferably, the inner side of the outer positioning ring is fixedly installed with mutually symmetrical snap-fit ​​protrusions, and the surface of the inner positioning rod is provided with snap-fit ​​concave rings for engaging with the snap-fit ​​protrusions.

[0015] In summary, this utility model has the following beneficial effects:

[0016] 1. When installing the micro switch, first place the micro switch precisely on the preset position of the inner support plate. After the position of the micro switch is accurately adjusted, the operator takes the top plate and places it steadily over the micro switch. The subsequent snap-fit ​​and positioning are achieved by pressing the top plate. The entire installation process does not require the use of tools to tighten the bolts. The stable limit of the micro switch can be achieved by the precise alignment between the components, which greatly improves the assembly efficiency.

[0017] 2. During the pressing of the top plate, the snap-fit ​​concave ring at the bottom of the inner positioning rod and the snap-fit ​​convex ring at the top of the outer positioning ring precisely engage to form a primary snap-fit. The clear snap-fit ​​feedback indicates to the operator that the top plate is initially aligned correctly and can continue to be pressed down. As the top plate continues to descend, the snap-fit ​​convex ring of the outer positioning ring further engages with the second snap-fit ​​concave ring on the inner positioning rod to complete a secondary snap-fit, achieving a stable insertion and positioning between the outer positioning ring and the inner positioning rod. The entire assembly process does not require tools, and the clear snap-fit ​​feedback ensures accurate installation position, greatly improving assembly reliability.

[0018] 3. After the inner and outer connecting plates are joined, the overall assembly is doubly constrained in both the horizontal and vertical dimensions. Furthermore, the positioning of side frame one and top frame one, and side frame two and top frame two, are aligned to securely enclose the microswitch, preventing displacement due to vibration during subsequent use. This structure provides a continuous and reliable fixation for the microswitch. This layered positioning and multi-constraint design simplifies the assembly process through a snap-fit ​​structure, fundamentally ensuring the stability and reliability of the microswitch's fixation.

[0019] 4. When replacing or maintaining the micro switch, the interference fit protruding from the top plate edge provides a convenient point of leverage for the hand or tools, preventing slippage due to the small size of the component. The integrated molding process ensures the strength and toughness of both structures, effectively resisting deformation caused by stress concentration during repeated manipulation or prying, preventing breakage or cracks at the connection between the interference fit and the top plate. This design not only simplifies disassembly during maintenance but also extends the number of times the top plate can be reused through improved structural toughness, reducing component wear during maintenance and further enhancing the practicality and economy of the overall device. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the outer mold shell of the charging gun of this utility model;

[0022] Figure 3 This is an enlarged schematic diagram of the inner support plate and the top plate of this utility model used together;

[0023] Figure 4 This is an enlarged schematic diagram of the inner support plate, side frame one, and side frame two of this utility model;

[0024] Figure 5 This is an enlarged schematic diagram of the top plate, top frame one, and top frame two of this utility model;

[0025] Figure 6 This is an exploded and enlarged schematic diagram of the top plate, top frame one, and top frame two of this utility model;

[0026] Figure 7 This is an exploded and enlarged schematic diagram of the outer connecting plate and the inner connecting plate of this utility model used together;

[0027] Figure 8 This is an enlarged schematic diagram showing the outer positioning ring and inner positioning rod of this utility model in use together;

[0028] Figure 9 This is an enlarged cross-sectional view of the outer positioning ring and inner positioning rod used in conjunction with this utility model.

[0029] Figure label:

[0030] 1. Charging gun outer mold shell one; 101. Charging gun outer mold shell two; 102. Inner support plate; 103. Mounting column;

[0031] 2. Side frame one; 201. Side frame two; 20. Side baffle;

[0032] 3. Top plate; 301. Top frame one; 302. Top frame two; 303. Interference edge;

[0033] 4. External connecting plate; 401. Snap-fit ​​groove;

[0034] 5. Internal connecting plate; 501. Snap-fit ​​protrusion;

[0035] 6. Outer positioning ring; 601. Positioning cavity;

[0036] 7. Inner positioning rod; 701. Snap-fit ​​convex ring; 702. Snap-fit ​​concave ring. Detailed Implementation

[0037] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the implementation plan without creative effort are all within the protection scope of this utility model.

[0038] The specific embodiments of this utility model are described below with reference to the accompanying drawings:

[0039] Example:

[0040] refer to Figures 1-9 A micro switch fixing device for an AC charging gun includes a charging gun outer mold shell 1 and a charging gun outer mold shell 2 101. Each of the charging gun outer mold shell 1 and the charging gun outer mold shell 2 101 has a corresponding mounting post 103 fixedly installed inside. An inner support plate 102 is fixedly installed inside the charging gun outer mold shell 1. Side frame 1 2 and side frame 2 201 are fixedly installed at both ends of one side of the inner support plate 102, respectively. Top frame 1 301 and top frame 2 302 are respectively provided on the top of side frame 1 2 and side frame 2 201.

[0041] An outer connecting plate 4 is fixedly installed on one side of both top frame 1 301 and top frame 2 302, and an inner connecting plate 5 located on one side of the outer connecting plate 4 is fixedly installed on the top of both side frame 1 2 and side frame 2 201.

[0042] Specifically, during the pressing of the top plate 3, the snap-fit ​​concave ring 702 at the bottom of the inner positioning rod 7 and the snap-fit ​​convex ring 701 at the top of the outer positioning ring 6 precisely engage to form a primary snap-fit. The clear snap-fit ​​feedback indicates to the operator that the top plate 3 is initially aligned accurately and can continue to be pressed down. As the top plate 3 continues to descend, the snap-fit ​​convex ring 701 of the outer positioning ring 6 further engages with the second snap-fit ​​concave ring 702 on the inner positioning rod 7 to complete a secondary snap-fit, achieving a stable insertion and positioning of the outer positioning ring 6 and the inner positioning rod 7. The entire assembly process does not require the use of tools, and the clear snap-fit ​​feedback ensures accurate installation position, greatly improving assembly reliability.

[0043] The charging gun outer mold shell 1 and the charging gun outer mold shell 2 101 are fastened together by mounting post 103 and external bolts. The charging gun outer mold shell 1 and the charging gun outer mold shell 2 101 are connected by threaded connection between mounting post 103 and external bolts to achieve assembly and fixation between the two.

[0044] A side baffle 202 located between side frame 1 and side frame 201 is fixedly installed on one side of the inner support plate 102. The side baffle 202 will be used to limit and abut against one side of the micro switch.

[0045] A top plate 3 is fixedly installed between top frame 1 301 and top frame 2 302. Both ends of the top plate 3 are integrally formed with interference edges 303. The top plate 3 connects and fixes side frame 1 2 and side frame 2 201, and provides a limit cover for the top of the micro switch. The interference edges 303, together with the protruding design on both sides of the top plate 3, facilitate the operator to cancel the snap-fit ​​operation of the top plate 3 later.

[0046] A snap-fit ​​protrusion 501 located inside the outer connecting plate 4 is fixedly installed on one side of the inner connecting plate 5. A snap-fit ​​groove 401 is provided on one side of the outer connecting plate 4 to engage with the snap-fit ​​protrusion 501. The engagement of the snap-fit ​​groove 401 and the snap-fit ​​protrusion 501 limits the positioning of the inner connecting plate 5 and the outer connecting plate 4 after docking.

[0047] One side of the inner support plate 102 is fixedly installed with an outer positioning ring 6 on the inner side of the side frame 1 2 and the side frame 2 201 respectively. The inner side of the outer positioning ring 6 is slidably connected with an inner positioning rod 7 that is fixedly connected to the top plate 3. The interlocking of the outer positioning ring 6 and the inner positioning rod 7 can also help to position the inner support plate 102 and the top plate 3, thereby realizing the positioning alignment of the side frame 1 2 and the top frame 1 301, and the side frame 2 201 and the top frame 2 302.

[0048] The outer positioning ring 6 has a positioning cavity 601 on its inner side for use in positioning and insertion with the inner positioning rod 7. The positioning cavity 601 provides a space inside the outer positioning ring 6 for insertion and positioning with the inner positioning rod 7.

[0049] The inner side of the outer positioning ring 6 is fixedly equipped with mutually symmetrical snap-fit ​​protrusions 701, and the surface of the inner positioning rod 7 is provided with snap-fit ​​concave rings 702 for snap-fitting with the snap-fit ​​protrusions 701. The mutual insertion of the snap-fit ​​concave rings 702 and the snap-fit ​​protrusions 701 will provide stability for the insertion and positioning between the outer positioning ring 6 and the inner positioning rod 7.

[0050] The working principle of this utility model is as follows: When installing the micro switch, firstly, accurately place the micro switch on the preset position of the inner support plate 102. At this time, the trigger control component of the micro switch needs to face and be close to the edge of the outer mold shell 1 of the charging gun to ensure effective linkage with the subsequent insertion action of the charging gun plug. At the same time, the connecting pins on both sides of the micro switch will be naturally placed at both ends of the side baffle 202 to ensure the stability of the electrical connection. After the micro switch is accurately adjusted, the operator takes the top plate 3, smoothly covers the micro switch with the top plate 3, and presses the top plate 3.

[0051] During the pressing of the top plate 3, the snap-fit ​​concave ring 702 at the bottom of the inner positioning rod 7 and the snap-fit ​​convex ring 701 at the top of the outer positioning ring 6 precisely engage to form a primary snap-fit. The obvious snap-fit ​​feedback indicates to the operator that the top plate 3 is initially aligned correctly and can continue to be pressed down. As the top plate 3 continues to descend, the snap-fit ​​convex ring 701 of the outer positioning ring 6 further engages with the second snap-fit ​​concave ring 702 on the inner positioning rod 7 to complete a secondary snap-fit, realizing a stable insertion and positioning of the outer positioning ring 6 and the inner positioning rod 7. At the same time, the inner connecting plate 5 and the outer connecting plate 4 are also limited and fixed through the corresponding snap-fit ​​structure.

[0052] The snap-fit ​​groove 401 and the snap-fit ​​protrusion 501 form a tight snap-fit ​​through precise interlocking. Combined with the limiting structure after the inner connecting plate 5 and the outer connecting plate 4 are connected, the overall assembly is doubly constrained from both the horizontal and vertical dimensions: on the one hand, the corresponding snap-fit ​​relationship between the inner support plate 102 and the top plate 3 ensures that the two are precisely aligned in the vertical direction, avoiding uneven pressure on the micro switch due to misalignment; on the other hand, the positioning alignment of the side frame 1 2 and the top frame 1 301, and the side frame 2 201 and the top frame 2 302, securely encloses the micro switch and prevents it from shifting due to vibration during subsequent use.

[0053] When the micro switch needs to be replaced or maintained, thanks to the integrated molding design of the interference edge 303 and the top plate 3, the operator can easily disassemble the top plate 3. The structural design of the interference edge 303 protruding from the edge of the top plate 3 provides a convenient point of force for the hand or tools, avoiding slippage due to the small size of the parts. During repeated turning or prying, it can effectively resist deformation caused by stress concentration, preventing breakage or cracks at the connection between the interference edge 303 and the top plate 3.

[0054] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0055] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A micro switch fixing device for an AC charging gun, comprising a charging gun outer mold shell one (1) and a charging gun outer mold shell two (101), wherein corresponding mounting posts (103) are fixedly installed inside both the charging gun outer mold shell one (1) and the charging gun outer mold shell two (101), and an inner support plate (102) is fixedly installed inside the charging gun outer mold shell one (1), characterized in that: Side frame one (2) and side frame two (201) are fixedly installed at both ends of one side of the inner support plate (102), and top frame one (301) and top frame two (302) are respectively provided on the top of the side frame one (2) and side frame two (201). An outer connecting plate (4) is fixedly installed on one side of the top frame 1 (301) and the top frame 2 (302), and an inner connecting plate (5) located on one side of the outer connecting plate (4) is fixedly installed on the top of the side frame 1 (2) and the side frame 2 (201).

2. The micro switch fixing device for an AC charging gun according to claim 1, characterized in that: The charging gun outer mold shell one (1) and the charging gun outer mold shell two (101) are fastened together by mounting post (103) and external bolts.

3. The micro switch fixing device for an AC charging gun according to claim 1, characterized in that: A side baffle (202) located between side frame one (2) and side frame two (201) is fixedly installed on one side of the inner support plate (102).

4. The micro switch fixing device for an AC charging gun according to claim 1, characterized in that: A top plate (3) is fixedly installed between the top frame one (301) and the top frame two (302), and the two ends of the top plate (3) are integrally formed with interference edges (303).

5. The micro switch fixing device for an AC charging gun according to claim 1, characterized in that: A snap-fit ​​protrusion (501) located inside the outer connecting plate (4) is fixedly installed on one side of the inner connecting plate (5), and a snap-fit ​​groove (401) is provided on one side of the outer connecting plate (4) for engaging with the snap-fit ​​protrusion (501).

6. The micro switch fixing device for an AC charging gun according to claim 1, characterized in that: One side of the inner support plate (102) is fixedly installed with an outer positioning ring (6) on the inner side of the side frame one (2) and the side frame two (201), respectively. The inner side of the outer positioning ring (6) is slidably connected with an inner positioning rod (7) that is fixedly connected to the top plate (3).

7. The micro switch fixing device for an AC charging gun according to claim 6, characterized in that: The outer positioning ring (6) has a positioning cavity (601) on its inner side for use in positioning and insertion with the inner positioning rod (7).

8. The micro switch fixing device for an AC charging gun according to claim 7, characterized in that: The inner side of the outer positioning ring (6) is fixedly installed with mutually symmetrical snap-fit ​​protrusions (701), and the surface of the inner positioning rod (7) is provided with snap-fit ​​concave rings (702) for use in conjunction with snap-fit ​​protrusions (701).

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