Microswitch and charging gun

Abstract

The utility model discloses a microswitch and a charging gun, and belongs to the field of electrical technology. The microswitch comprises a switch main body and a plurality of limiting bosses; the plurality of limiting bosses are arranged at intervals along the circumferential direction of the switch main body, and each limiting boss is connected to the side wall of the switch main body and is suspended relative to the switch main body; and the limiting boss is lapped to the shell of the electronic equipment and is mutually limited with the shell of the electronic equipment. By arranging the limiting boss at the side part of the microswitch, the microswitch can be stably assembled on the shell of the electronic equipment, the operation is convenient and reliable, time and labor are saved, an independent assembly part does not need to be additionally arranged for the microswitch, and the assembly cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of electricity, and particularly relates to a microswitch and a charging gun. Background Art

[0002] The charging gun can charge a power receiving device, such as an electric vehicle. A locking member and a microswitch are arranged on the charging gun. The locking member is used to lock the gun head of the charging gun in the power receiving port of the power receiving device after the gun head is inserted into the power receiving port. The microswitch can be switched between a closed state and an open state under the triggering action of the locking member, so as to feedback the locking state of the charging gun.

[0003] In the related art, the microswitch is fixed to the housing of the charging gun by an adhesive method. However, when injecting glue in a narrow space, it is usually difficult to control the amount of glue. Once the glue is unevenly applied, the glue may easily come off, causing the microswitch to become loose. Moreover, the adhesive method requires additional assembly materials, making the assembly operation of the charging gun complex, time-consuming and laborious, and increasing the assembly cost. Summary of the Utility Model

[0004] In view of this, the utility model provides a microswitch and a charging gun, which can solve the technical problems existing in the related art.

[0005] Specifically, the following technical solutions are included:

[0006] On the one hand, a microswitch is provided. The microswitch includes a switch body and a plurality of limiting bosses. The plurality of limiting bosses are arranged at intervals along the circumferential direction of the switch body. Each limiting boss is connected to the side wall of the switch body and is arranged suspended relative to the switch body. The limiting boss is used to lap on the gun housing of the electronic device and be mutually limited with the gun housing.

[0007] In some possible implementation manners, the limiting boss includes a boss body and a first limiting structure. The boss body is connected to the side wall of the switch body. The first limiting structure is arranged on the boss body. The gun housing of the electronic device has a second limiting structure. The first limiting structure and the second limiting structure are mutually limited. One of the first limiting structure and the second limiting structure includes a concave hole or a groove, and the other includes a convex block.

[0008] In some possible implementation manners, the first limiting structure is a concave hole or a groove.

[0009] In some possible implementation manners, the limiting boss serves as the first limiting structure. The gun housing of the charging gun has a second limiting structure, and the second limiting structure is in the shape of a concave hole or a groove adapted to the limiting boss.

[0010] In some possible implementation manners, the limiting boss is provided as two symmetrically arranged ones.

[0011] In some possible implementation manners, the switch body includes: a main body portion and a stepped portion disposed around the periphery of the main body portion, the limiting boss being connected to the side wall of the stepped portion; the microswitch further includes a sealing ring, and the sealing ring is sleeved outside the main body portion.

[0012] In some possible implementation manners, the sealing ring includes: an inner ring portion and an outer ring portion, the outer ring portion being disposed around the periphery of one end of the inner ring portion; the inner ring portion is sleeved outside the main body portion, and the surface of the outer ring portion facing away from the inner ring portion abuts against the stepped portion.

[0013] In some possible implementation manners, the stepped portion has a limiting groove, and at least a part of the outer ring portion is received in the limiting groove.

[0014] On the other hand, a charging gun is provided, and the charging gun includes: a gun housing and the microswitch as described in any one of the above assembled to the gun housing, the limiting boss being lapped on the gun housing and the limiting boss and the gun housing being mutually limited.

[0015] In some possible implementation manners, the switch body includes: a main body portion and a stepped portion disposed around the periphery of the main body portion, the limiting boss being connected to the side wall of the stepped portion; the microswitch further includes a sealing ring, the sealing ring is sleeved outside the main body portion, the gun housing has an opening, the main body portion penetrates through the opening, and the sealing ring is clamped between the outer side wall of the main body portion and the inner side wall of the opening.

[0016] The beneficial effects of the technical solution provided by the embodiment of the present utility model at least include:

[0017] The microswitch provided by the embodiment of the present utility model is provided with a plurality of limiting bosses connected to the side wall of the switch body. The limiting bosses are arranged suspended relative to the switch body, so as to facilitate the limiting bosses to be lapped on the housing of the electronic device. Further, by making the limiting bosses and the housing of the electronic device limit each other, it is beneficial to stably assemble the microswitch on the housing. In some cases, based on the mutual limitation between the limiting bosses and the housing of the electronic device, the stable assembly of the microswitch can be achieved. On this basis, since the limiting bosses are lapped on the housing of the electronic device, in other cases, the limiting bosses can be further pressed by means of the fastening structure of the housing of the electronic device itself, ensuring a stable connection between the microswitch and the housing of the electronic device. To sum up, the embodiment of the present utility model can be used for the stable assembly of the microswitch on the housing of the electronic device by arranging the limiting bosses on the side of the microswitch. The operation is convenient and reliable, time-saving and labor-saving, and there is no need to additionally add separate assembly parts for the microswitch, which is also beneficial to simplifying the assembly structure and reducing the assembly cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 It is a schematic structural diagram of an exemplary microswitch provided by the embodiment of the present utility model;

[0020] Figure 2 It is a schematic structural diagram of another exemplary microswitch provided by the embodiment of the present utility model;

[0021] Figure 3 It is a schematic diagram of the assembly method of an exemplary microswitch and a gun housing provided by the embodiment of the present utility model;

[0022] Figure 4 For Figure 3 It is a partial exploded view of the shown assembly method schematic diagram;

[0023] Figure 5 For Figure 1 It is a combined view of the shown microswitch from a top view;

[0024] Figure 6 For Figure 1 It is an exploded view of the shown microswitch from a top view;

[0025] Figure 7 It is a sectional view of an exemplary charging gun provided by the embodiment of the present utility model;

[0026] Figure 8 Explosion diagram of an exemplary charging gun provided by an embodiment of the present utility model;

[0027] Figure 9 Combination diagram of an exemplary charging gun provided by an embodiment of the present utility model.

[0028] Reference numerals respectively represent:

[0029] 100, charging module;

[0030] 101, microswitch;

[0031] 11, switch body; 111, main body part; 112, step part; 1120, limit groove;

[0032] 12, limit boss; 121, boss body; 122, first limit structure;

[0033] 13, sealing ring; 131, inner ring part; 132, outer ring part;

[0034] 102, self-locking mechanism; 1020, self-locking head;

[0035] 200, housing of the electronic device / gun housing of the charging gun;

[0036] 201, gun head housing; 202, gun body housing; 203, housing outer cover;

[0037] 20, fastening structure / fastener; 21, second limit structure; 22, opening; 23, notch.

[0038] Through the above-mentioned drawings, specific embodiments of the present utility model have been shown, and there will be more detailed descriptions hereinafter. These drawings and textual descriptions are not intended to limit the scope of the concept of the present utility model in any way, but to illustrate the concept of the present utility model to those skilled in the art by referring to specific embodiments. Detailed implementation manners

[0039] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0040] Some exemplary embodiments are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. In the description of the embodiments of the present invention, it should be understood that some orientation terms, such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "outer", "inner", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the embodiments of the present invention.

[0041] In the related art, the microswitch is fixed to the housing of the charging gun by an adhesive method. However, when performing the glue injection operation in a narrow space, it is usually difficult to control the amount of glue. Once the glue is unevenly applied, the phenomenon of glue detachment is likely to occur, resulting in the loosening of the microswitch. Moreover, the adhesive method requires additional assembly materials, making the assembly operation of the charging gun relatively complex, time-consuming and laborious, and increasing the assembly cost.

[0042] In view of the technical problems existing in the related art, the embodiments of the present invention provide a microswitch 101, which can be used in an electronic device, such as a charging gun, and can be conveniently assembled to the housing 200 of the electronic device (for example, the gun housing 200 of the charging gun).

[0043] As shown in the attached Figure 1 drawing, the microswitch 101 includes a switch body 11 and a plurality of limiting bosses 12. The plurality of limiting bosses 12 are arranged at intervals along the circumferential direction of the switch body 11. Each limiting boss 12 is connected to the side wall of the switch body 11 and is arranged in a suspended manner relative to the switch body 11; the limiting boss 12 is used for lapping on the housing 200 of the electronic device and forming a limit with the housing 200 of the electronic device.

[0044] Among them, the "limiting boss 12 is arranged in a suspended manner relative to the switch body 11" involved in the embodiments of the present invention means that the bottom wall of the limiting boss 12 is suspended to allow the bottom wall of the limiting boss 12 to lap on the housing 200 of the electronic device. The bottom wall of the limiting boss 12 involved here is the wall of the limiting boss 12 facing the inner cavity of the housing 200 of the electronic device, that is, Figure 1 the bottom wall in the shown orientation.

[0045] The microswitch 101 provided by the embodiment of the present utility model is configured by connecting a plurality of limiting bosses 12 to the side wall of the switch body 11. The limiting bosses 12 are arranged in a suspended manner relative to the switch body 11, so as to facilitate the limiting bosses 12 to be lapped on the housing 200 of the electronic device. Further, by making the limiting bosses 12 and the housing 200 of the electronic device limit each other, it is beneficial to stably assemble the microswitch 101 on the housing 200. In some cases, based on the mutual limitation between the limiting bosses 12 and the housing 200 of the electronic device, the stable assembly of the microswitch 101 can be achieved. On this basis, since the limiting bosses 12 are lapped on the housing 200 of the electronic device, in other cases, the limiting bosses 12 can be further pressed by means of the fastening structure 20 of the housing 200 of the electronic device itself, ensuring a stable connection between the microswitch 101 and the housing 200 of the electronic device. To sum up, the embodiment of the present utility model can be used for the stable assembly of the microswitch 101 on the housing 200 of the electronic device by arranging the limiting bosses 12 on the side of the microswitch 101. The operation is convenient and reliable, time-saving and labor-saving, and there is no need to additionally add separate assembly parts for the microswitch 101, which is also beneficial to simplifying the assembly structure and reducing the assembly cost.

[0046] As mentioned above, the limiting bosses 12 can be further pressed by means of the fastening structure 20 of the housing 200 of the electronic device itself. The following describes how this solution is implemented by taking the electronic device as a charging gun as an example.

[0047] For example, as shown in the attached Figure 3 and the attached Figure 4 figure, the charging gun has a gun housing 200, and the gun housing 200 includes: a gun head housing 201, a gun body housing 202, and a housing outer cover 203. The connecting end of the gun head housing 201 is inserted into the connecting end of the gun body housing 202 and connected by a fastener 20, and the fastener 20 can also press the limiting bosses 12. The housing outer cover 203 is sleeved outside the connecting end of the gun body housing 202, and at the same time, the microswitch 101 is accommodated therein, so that the microswitch 101 is not exposed.

[0048] In this case, on the one hand, the limiting bosses 12 can be mutually limited with the gun head housing 201 and / or the gun body housing 202 in a direction perpendicular to the pressing direction of the fastener 20. On the other hand, the limiting bosses 12 are pressed by the fastener 20 in the pressing direction of the fastener 20. Thus, the limiting bosses 12 are stably limited in the directions parallel to and perpendicular to the gun housing 200, realizing the reliable fixation of the microswitch 101 on the gun housing 200.

[0049] Based on the structure of the gun housing 200 involved above, in some examples, the embodiment of the present utility model can make the limiting boss 12 lap on the gun housing 200 of the charging gun and be mutually limited with the gun housing 200 of the charging gun. Further, it can be that the limiting boss 12 laps on the gun head housing 201 of the gun housing 200 and is mutually limited with the gun head housing 201.

[0050] In the embodiment of the present utility model, the limiting boss 12 can use its own boss structure as a limiting structure to limit with the housing 200 of the electronic device. Or, an independent limiting structure can also be provided on the limiting boss 12 to limit with the housing 200 of the electronic device. The following will respectively make an exemplary elaboration on these two methods.

[0051] In some implementation schemes (1), as shown in the appendix Figure 1 As shown, the limiting boss 12 includes: a boss body 121 and a first limiting structure 122. The boss body 121 is connected to the side wall of the switch body 11. The first limiting structure 122 is arranged on the boss body 121. Further, as shown in the appendix Figure 4 As shown, the housing of the electronic device, such as the gun housing 200 of the charging gun, has a second limiting structure 21. The first limiting structure 122 and the second limiting structure 21 are mutually limited. One of the first limiting structure 122 and the second limiting structure 21 includes a concave hole or a groove, and the other includes a convex block.

[0052] By providing the first limiting structure 122 on the boss body 121 and the second limiting structure 21 on the housing 200 of the electronic device, the first limiting structure 122 and the second limiting structure 21 are adapted to each other. For example, one of them includes a concave hole or a groove, and the other includes a convex block that can be adaptively inserted into the concave hole or the groove. Thus, the wall of the concave hole or the groove limits the convex block, realizing the limitation between the first limiting structure 122 and the second limiting structure 21.

[0053] Among them, Figure 4 The relevant scheme when the electronic device is a charging gun is exemplified. The first limiting structure 122 in the shape of a concave hole is provided on the limiting boss 12, and the second limiting structure 21 in the shape of a cylindrical convex block is provided on the gun head housing 201 of the gun housing 200. When the limiting boss 12 laps on the gun head housing 201, the second limiting structure 21 is inserted into the first limiting structure 122 to achieve mutual limitation, so that the limiting boss 12 and the gun head housing 201 of the gun housing 200 are mutually limited.

[0054] For the implementation scheme (1), the structural settings and position arrangements of the first limiting structure 122 and the second limiting structure 21 are more flexible, the operation is more convenient, and it is easier to avoid occupying more space.

[0055] For embodiment (1), in one embodiment, the first limiting structure 122 is a concave hole that penetrates the top wall and the bottom wall of the boss body 121. Correspondingly, the second limiting structure 21 is a convex block that penetrates the concave hole. In another embodiment, the first limiting structure 122 is a groove, which can be in the form of a blind groove and only penetrates the bottom wall of the boss body 121. Correspondingly, the second limiting structure 21 is a convex block that can be inserted into the groove and abuts against the top wall of the groove. In still another embodiment, the first limiting structure 122 is a convex block, and the second limiting structure 21 is a concave hole or a groove that is adapted to be inserted and connected with the convex block.

[0056] Taking an electronic device as a charging gun as an example, in some examples, as shown in the attached Figure 1 and the attached Figure 4 figures, the first limiting structure 122 can be a concave hole or a groove. Correspondingly, the second limiting structure 21 provided on the gun housing 200 of the charging gun is a convex block. Setting a convex block on the gun housing 200 of the charging gun is not only more conducive to ensuring the sealing performance of the gun housing 200 itself, but also conducive to improving the structural strength of the gun housing 200 at this position compared with setting a concave hole.

[0057] In some embodiments (2), as shown in the attached Figure 2 figures, the limiting boss 12 serves as the first limiting structure 122, and the housing 200 of the electronic device, for example, the gun housing 200 of the charging gun, has the second limiting structure 21, and the second limiting structure 21 is in the shape of a concave hole or a groove that is adapted to the limiting boss 12.

[0058] Embodiment (2) can also achieve the limiting function by embedding the limiting boss 12 into the concave hole or groove provided on the housing 200 of the electronic device. Among them, setting the second limiting structure 21 in the shape of a groove is more conducive to the sealing performance of the housing 200. Of course, this embodiment is more suitable for the housing 200 with a relatively thick wall thickness.

[0059] As mentioned above, the limiting bosses 12 are provided in multiple numbers, for example, two, three, four or more. The multiple limiting bosses 12 are arranged at intervals along the circumferential direction of the switch body 11. Further, the multiple limiting bosses 12 are evenly arranged at intervals. In some examples, as shown in the attached Figure 1 figures, the limiting bosses 12 are provided as two symmetrically arranged ones. Two limiting bosses 12 can achieve a stable limiting effect and are conducive to simplifying the structure of the micro switch 101.

[0060] In the micro switch 101 provided by the embodiment of the present utility model, on the premise that the bottom wall of the limiting boss 12 can be in surface contact with the housing 200 of the electronic device to which it is lapped and does not affect the self-assembly of the housing 200 of the electronic device, the shape of the limiting boss 12 can be designed arbitrarily. For example, it can be designed as a simple rectangular shape, a circular shape, a trapezoidal shape, etc.

[0061] Taking the electronic device as a charging gun as an example, considering that when the switch body 11 of the microswitch 101 is assembled to the gun housing 200, it can penetrate the opening 22 on the gun housing 200 and extend into its cavity. As shown in the appendix Figure 3 and the appendix Figure 4 As shown, the gun head housing 201 of the gun housing 200 has an opening 22 to allow the switch body 11 to penetrate. At the same time, the gun body housing 202 has a notch 23 to allow the gun head housing 201 equipped with the microswitch 101 to enter it when inserted, and the notch 23 allows the microswitch 101 to enter it.

[0062] In order to improve the sealing performance between the switch body 11 and the gun housing 200, as shown in the appendix Figure 1 and the appendix Figure 5 and the appendix Figure 6 As shown, the switch body 11 includes: a main body portion 111 and a stepped portion 112 arranged around the circumference of the main body portion 111, and a limiting boss 12 is connected to the side wall of the stepped portion 112; the microswitch 101 further includes a sealing ring 13, and the sealing ring 13 is sleeved outside the main body portion 111.

[0063] By sleeving the sealing ring 13 outside the main body portion 111, the sealing ring 13 is clamped between the outer side wall of the main body portion 111 and the inner side wall of the opening 22 of the gun housing 200, thereby sealing the assembly gap between the switch body 11 and the gun housing 200, specifically between the gun head housing 201, and realizing the waterproofing of the gun housing 200.

[0064] For example, as shown in the appendix Figure 3 and the appendix Figure 4 As shown, the gun housing 200 includes: a gun head housing 201 and a gun body housing 202. The gun head housing 201 includes the gun head housing 201. The connecting end of the gun head housing 201 is inserted into the connecting end of the gun body housing 202 and is connected by a fastener 20. The connecting end of the gun head housing 201 has an opening 22, and the main body portion 111 penetrates the opening 22. As shown in the appendix Figure 7 As shown, the sealing ring 13 is clamped between the outer side wall of the main body portion 111 and the inner side wall of the opening 22.

[0065] The sealing ring 13 can be a common equal-diameter sealing ring structure, or a variable-diameter sealing ring structure. The variable-diameter sealing ring structure usually has a skirt and can achieve sealing from multiple angles, further improving the sealing reliability.

[0066] As shown in the appendix Figure 5 and the appendix Figure 6 As shown, the sealing ring 13 includes: an inner ring portion 131 and an outer ring portion 132. The outer ring portion 132 is arranged around the circumference of one end of the inner ring portion 131; the inner ring portion 131 is sleeved outside the main body portion 111, and the surface of the outer ring portion 132 facing away from the inner ring portion 131 abuts against the stepped portion 112.

[0067] The diameter of the outer ring portion 132 is larger than that of the inner ring portion 131, so that the bottom of the outer ring portion 132 is arranged to be suspended relative to the inner ring portion 131. In this way, when in application, the inner ring portion 131 is clamped between the outer side wall of the main body portion 111 and the inner side wall of the opening 22, and the outer ring portion 132 is clamped between the stepped portion 112 and the outer wall of the connecting end of the gun housing 200, such as the connecting end outer wall of the gun head housing 201.

[0068] It can be seen that the sealing ring 13 is arranged in such a way that sealing operations can be carried out in both the radial and axial directions of the sealing ring 13, improving the sealing reliability.

[0069] For the above-mentioned sealing ring 13, in order to assemble the sealing ring 13 to the switch body 11 more stably, as shown in the attached... Figure 5 and the attached... Figure 6 As shown, the stepped portion 112 is provided with a limiting groove 1120, and at least part of the outer ring portion 132 is accommodated in the limiting groove 1120. By providing the limiting groove 1120 on the bottom wall of the stepped portion 112 to also accommodate the outer ring portion 132 of the sealing ring 13, the sealing ring 13 can be limited in the radial direction, realizing the stable assembly of the sealing ring 13.

[0070] On the other hand, the embodiment of the present invention also provides a charging gun. As shown in the attached... Figure 8 and the attached... Figure 9 As shown, the charging gun includes: a gun housing 200 and any one of the above-mentioned microswitches 101 assembled to the gun housing 200. The limiting boss 12 is lapped on the gun housing 200 and the limiting boss 12 and the gun housing 200 are mutually limited.

[0071] Exemplarily, as shown in the attached... Figure 3 , the attached... Figure 4 and the attached... Figure 7 As shown, the gun housing 200 includes: a gun head housing 201, a gun body housing 202 and a housing outer cover 203. The connecting end of the gun head housing 201 is inserted into the connecting end of the gun body housing 202 and is connected by a fastener 20, and the fastener 20 can also press the limiting boss 12. The housing outer cover 203 is sleeved outside the connecting end of the gun body housing 202. Among them, the limiting boss 12 is lapped on the gun head housing 201 and the limiting boss 12 and the gun head housing 201 are mutually limited in the horizontal direction. Further, the fastener 20 can also press the limiting boss 12 in the vertical direction.

[0072] The charging gun provided by the embodiment of the present invention has all the advantages of the above-mentioned microswitch 101 and will not be elaborated here.

[0073] It should be noted that a charging module 100 is provided inside the gun housing 200 of the charging gun. The charging module 100 at least includes the microswitch 101 involved above. Further, as shown in the appended Figure 8 and the appended Figure 9 figures, the charging module 100 further includes a self-locking mechanism 102. The self-locking mechanism 102 includes a self-locking head 1020. The microswitch 101 is controlled by the self-locking head 1020. For example, the microswitch 101 is located below the self-locking head 1020 to achieve control.

[0074] The self-locking mechanism 102 is assembled to the gun body housing 202 and is located inside the housing outer cover 203, and the self-locking head 1020 passes through the inner cavity of the housing outer cover 203 and protrudes from its end. The self-locking head 1020 is used to lock into the power receiving port of the power receiving device. Correspondingly, a locking groove is provided at the power receiving port of the power receiving device, such as an electric vehicle, and the self-locking head 1020 is adaptively clamped with the locking groove. After the charging gun is inserted into the power receiving port of the power receiving device, its self-locking head 1020 locks the charging gun, so that the charging gun charges in the locked state. At the same time, the self-locking head 1020 in the locked position can trigger the microswitch 101, so that the microswitch 101 is in the closed state, and the microswitch can thus feedback the electrical signal indicating whether the charging gun is locked.

[0075] Conversely, after charging is completed, by operating the self-locking mechanism 102 to switch its self-locking head 1020 to the unlocking position, the microswitch 101 can also be correspondingly triggered and switched from the closed state to the open state, the charging gun is powered off, and is in the unlocked state, so that it can be pulled out from the power receiving device.

[0076] The assembly method of the microswitch 101 provided by the embodiment of the present invention is particularly suitable for the assembly operation of the microswitch 101 assembled below the self-locking head 1020, and has the advantages of convenient operation and reliable assembly.

[0077] As described above, as shown in the appended Figure 5 and the appended Figure 6 figures, the switch body 11 of the microswitch 101 includes: a main body portion 111 and a stepped portion 112 disposed around the periphery of the main body portion 111. The limiting boss 12 is connected to the side wall of the stepped portion 112. The microswitch 101 further includes a sealing ring 13. The sealing ring 13 is sleeved outside the main body portion 111. An opening 22 is provided on the gun housing 200. The main body portion 111 passes through the opening 22, and the sealing ring 13 is clamped between the outer side wall of the main body portion 111 and the inner side wall of the opening 22.

[0078] It can be seen that for the charging gun provided by the embodiment of the present invention, the microswitch 101 can not only be simply and reliably assembled based on the limiting boss 12, but also the gun housing 200 is waterproof based on the sealing ring 13. Based on the structural improvement of the microswitch 101, many beneficial effects are obtained.

[0079] In the embodiments of the present utility model, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. The term "plural" refers to two or more, unless otherwise clearly defined.

[0080] The term "and / or" in the embodiments of the present utility model merely describes the associated relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent three situations: A exists alone, A and B exist simultaneously, and B exists alone.

[0081] The above is only for the convenience of those skilled in the art to understand the technical solution of the present utility model, and is not intended to limit the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A microswitch, characterized in that, The micro switch (101) comprises: a switch body (11) and a plurality of limiting bosses (12); The plurality of limiting bosses (12) are arranged at intervals along the circumference of the switch body (11); each limiting boss (12) is connected to a side wall of the switch body (11) and is suspended relative to the switch body (11); The limiting boss (12) is used to overlap the housing (200) of the electronic device and to limit each other with the housing (200).

2. The microswitch according to claim 1, wherein, The limiting boss (12) comprises: a boss body (121) and a first limiting structure (122); The boss body (121) is connected to the side wall of the switch body (11); The first limiting structure (122) is arranged on the boss body (121), and the housing (200) of the electronic device has a second limiting structure (21), the first limiting structure (122) and the second limiting structure (21) are mutually limited, and one of the first limiting structure (122) and the second limiting structure (21) includes a concave hole or a groove, and the other includes a convex block.

3. The microswitch according to claim 2, characterized in that, The first limiting structure (122) is a concave hole or a groove.

4. The microswitch according to claim 1, characterized in that, The limiting boss (12) serves as a first limiting structure (122), and the housing (200) of the electronic device has a second limiting structure (21), wherein the second limiting structure (21) is in the shape of a concave hole or a groove that matches the limiting boss (12).

5. The microswitch according to any one of claims 1 to 4, characterized in that, The limiting bosses (12) are provided as two symmetrically arranged ones.

6. The microswitch according to any one of claims 1-4, characterized in that, The switch body (11) comprises: a main body portion (111) and a step portion (112) arranged around the main body portion (111), and the limiting boss (12) is connected to a side wall of the step portion (112); The micro switch (101) further comprises a sealing ring (13), wherein the sealing ring (13) is sleeved on the outside of the main body (111).

7. The microswitch according to claim 6, characterized in that, The sealing ring (13) comprises: an inner ring portion (131) and an outer ring portion (132), wherein the outer ring portion (132) is arranged around one end of the inner ring portion (131); The inner ring portion (131) is sleeved on the outside of the main body portion (111), and the surface of the outer ring portion (132) facing away from the inner ring portion (131) is in contact with the step portion (112).

8. The microswitch according to claim 7, characterized in that, The step portion (112) is provided with a limiting groove (1120), and the outer ring portion (132) is at least partially accommodated in the limiting groove (1120).

9. A charging gun, characterized in that, The charging gun comprises: a gun housing (200) and a micro switch according to any one of claims 1 to 8 assembled to the gun housing (200); The limiting boss (12) is overlapped on the gun housing (200), and the limiting boss (12) and the gun housing (200) are mutually limited.

10. The charging gun according to claim 9, characterized in that, The switch body (11) comprises: a main body portion (111) and a step portion (112) arranged around the main body portion (111), and the limiting boss (12) is connected to a side wall of the step portion (112); The microswitch (101) further includes a sealing ring (13), the sealing ring (13) is sleeved on the outside of the main body portion (111), the gun housing (200) has an opening (22), the main body portion (111) penetrates through the opening (22), and the sealing ring (13) is clamped between the outer side wall of the main body portion (111) and the inner side wall of the opening (22).

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