Accessory structure and switching device

Abstract

The utility model provides an accessory structure and a switching device, and relates to the technical field of electrical equipment. The accessory structure comprises a base and an upper cover. The base and the upper cover are oppositely arranged, one of the base and the upper cover is provided with an assembly boss, and the other one of the base and the upper cover is provided with an assembly through hole. The assembling boss is arranged in the assembling through hole in a penetrating mode, part of the assembling boss is exposed through the assembling through hole, and the part, exposed through the assembling through hole, of the assembling boss is punched and riveted to form a fixing unit so that the base can be connected with the upper cover. Thus, the connection strength of the base and the upper cover is large, the wiring performance and the impact resistance can be improved, and the reliability of normal work of the switching device carrying the accessory structure is improved. In addition, the manufacturing cost of the accessory structure can be reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electrical equipment, in particular to an accessory structure and a switching device. BACKGROUND

[0002] In order to increase the protection function of the switching device and improve its use range, an accessory structure is generally connected in the switching device, and the accessory structure is applied more as a supplement to the function of the switching device.

[0003] At present, in order to facilitate the setting of functional components in the accessory structure, the shell of the accessory structure is generally divided into a base and an upper cover, and the base and the upper cover are assembled by a buckle with elasticity.

[0004] This assembly mode makes the connection strength of the base and the upper cover weak, and the base and the upper cover are easily disconnected by impact, which is not conducive to the normal use of the switching device. CONTENT OF THE UTILITY MODEL

[0005] The present application provides an accessory structure and a switching device, which can improve the connection strength of the base and the upper cover, reduce the possibility of disconnection of the base and the upper cover caused by impact, and improve the reliability of the normal operation of the switching device.

[0006] In a first aspect, the present application provides an accessory structure, which comprises a base and an upper cover. The base and the upper cover are oppositely arranged, one of the base and the upper cover is provided with an assembly boss, and the other of the base and the upper cover is provided with an assembly through hole.

[0007] The assembly boss is arranged in the assembly through hole, and part of the assembly boss is exposed outside the assembly through hole. The part of the assembly boss exposed outside the assembly through hole is formed into a fixed unit by impact riveting, so as to connect the base and the upper cover.

[0008] In the accessory structure provided by the present application, the connection strength of the base and the upper cover is large, which can improve the wiring performance and the impact resistance, and improve the reliability of the normal operation of the switching device with the above-mentioned accessory structure. In addition, the manufacturing cost of the accessory structure can be reduced.

[0009] Optionally, the assembly through hole is located inside the projection of the fixed unit in the direction from the upper cover to the base, or the projection of part of the fixed unit is misaligned with the assembly through hole in the direction from the upper cover to the base.

[0010] In this way, the fixed unit formed by impact riveting has a limiting effect on one of the base and the upper cover provided with the assembly through hole, and the connection of the base and the upper cover can be achieved.

[0011] Optionally, the assembly boss is a piece of thermoplastic material, and the assembly boss is formed into a fixed unit by hot riveting.

[0012] In the specific setting, the hot riveting head can be pressed on the part of the assembly boss extending from the assembly through hole, and a certain pressure is applied. In this way, the part of the assembly boss is deformed easily after being heated to form the fixed unit.

[0013] Optionally, the assembly boss is connected to the connecting surface, and an end of the assembly boss away from the connecting surface is provided with a first fillet, which is used for guiding the assembly boss when the assembly boss is arranged in the assembly through hole.

[0014] Therefore, when the base is arranged in cooperation with the upper cover so that the assembly boss passes through the assembly through hole, the first fillet can guide the assembly boss, facilitating the cooperation of the assembly boss and the assembly through hole.

[0015] Optionally, the assembly boss comprises a connecting boss and a fixed boss connected to each other, and the connecting boss is connected to the connecting surface. The connecting boss is located between the base and the upper cover, the fixed boss is arranged in the assembly through hole, and part of the fixed boss is exposed outside the assembly through hole. In the direction from the upper cover to the base, the projection of the fixed boss is located inside the projection of the connecting boss.

[0016] In this way, compared with the size of the connecting boss, the size of the fixed boss is smaller. Therefore, after the fixed unit is formed, the connecting boss and the fixed unit can limit the upper cover on the opposite sides of the upper cover, improving the reliability of the connection between the base and the upper cover.

[0017] Optionally, the number of the assembly bosses and the assembly through holes is multiple, and the multiple assembly bosses are arranged in the assembly through holes one by one.

[0018] Based on this, the connection strength of the base and the upper cover can be improved, further reducing the possibility of the accessory structure being disconnected due to impact, and improving the wiring torque of the accessory structure.

[0019] Optionally, the accessory structure further comprises a middle base, and the installation cavity is formed between the upper cover and the base, and the middle base is arranged in the installation cavity. The middle base is provided with an installation through hole, and at least one of the multiple assembly bosses is arranged in the installation through hole and the assembly through hole.

[0020] In this way, when the base and the upper cover are connected, the assembly boss is arranged in the installation through hole and the assembly through hole. In the case that the fixed unit is formed on the assembly boss, the assembly boss can also fix the middle base, reducing the possibility of the middle base moving in the installation cavity.

[0021] Optionally, the assembly boss is arranged on the side of the base facing the upper cover, and the assembly boss and the base are an integral structure.

[0022] Therefore, the assembly boss can be simultaneously manufactured in the manufacturing process of the base, the manufacturing process of the assembly boss is simplified, the number of parts of the accessory structure is reduced, and the assembly of the accessory structure is facilitated.

[0023] Optionally, a second round corner is arranged on the upper cover, the second round corner is arranged around the circumference of the assembly through hole, and is located on the side of the upper cover facing the base. The second round corner is used to guide the assembly boss when the assembly boss is arranged in the assembly through hole.

[0024] Therefore, when the base and the upper cover are matched, the second round corner can also guide the assembly boss when the assembly boss passes through the assembly through hole, facilitating the matching of the assembly boss and the assembly through hole.

[0025] In a second aspect, the application provides a switch device, comprising a switch body and the accessory structure of any one of the above-mentioned first aspect, and the accessory structure is connected with the switch body.

[0026] The switch device provided in the above-mentioned second aspect and each possible design of the above-mentioned second aspect has the beneficial effects of the above-mentioned first aspect and each possible embodiment of the first aspect, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 FIG. 1 is a schematic view of an accessory structure according to an embodiment of the application.

[0028] Figure 2 FIG. 1 is a schematic view of an accessory structure according to an embodiment of the application.

[0029] Figure 3 FIG. 1 is a schematic view of an accessory structure according to an embodiment of the application.

[0030] Figure 4 FIG. 1 is a schematic view of an accessory structure according to an embodiment of the application.

[0031] Figure 5 FIG. 1 is a schematic view of an accessory structure according to an embodiment of the application. Figure 4 FIG. 1 is a schematic view of an accessory structure according to an embodiment of the application.

[0032] Figure 6 FIG. 1 is a schematic view of an accessory structure according to an embodiment of the application.

[0033] Figure 7 FIG. 1 is a schematic view of an accessory structure according to an embodiment of the application.

[0034] BRIEF DESCRIPTION OF DRAWINGS

[0035] 100: accessory structure; 10: base; 101: connecting surface; 20: upper cover; 21: second round corner; 30: assembly boss; 31: first round corner; 32: connecting boss; 33: fixing boss; 40: assembly through hole; 50: middle base; 51: mounting through hole. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims and drawings of this application are intended to cover non-exclusive inclusion.

[0038] The term "embodiment" as used herein means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of the phrase "embodiment" in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0039] In this article, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists, A and B exist simultaneously, or B exists. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0040] The directional terms appearing in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of this application. For example, in the description of this application, the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0041] In addition, the terms "first", "second", and the like in the description and claims of the application or the above drawings are used to distinguish different objects, and are not used to describe a specific order, and can explicitly or implicitly include one or more of the features.

[0042] In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more (including two), and similarly, "a plurality of groups" means two or more groups (including two groups).

[0043] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, the "connection" or "connection" of mechanical structure can mean physical connection, for example, the physical connection can be fixed connection, for example, fixed connection by spacer, for example, fixed connection by screw, bolt or other spacer; the physical connection can also be detachable connection, for example, mutual clamping or clamping connection; the physical connection can also be integrally connected, for example, welding, bonding or integrally formed connection. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0044] It should be understood that the "one embodiment" or "an embodiment" mentioned throughout the specification means that the specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the present application. Therefore, "in one embodiment" or "in an embodiment" appearing throughout the specification does not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner.

[0045] For example, the embodiment of the present application proposes a switching device, which comprises a switching body and an accessory structure 100 as shown in the figure, and the accessory structure 100 is connected with the switching body. Figure 1

[0046] In the switching device provided with the accessory structure 100 proposed in the present application, the connection strength of the base 10 and the upper cover 20 of the accessory structure 100 is large, which can reduce the possibility of disconnection of the base 10 and the upper cover 20 of the accessory structure 100 due to impact and the like, so that the accessory structure 100 works more reliably, thereby improving the reliability of the switching device.

[0047] In the embodiment of the present application, the accessory structure 100 can be an in-machine accessory connected inside the switching body, for example, a separate excitation release, an auxiliary switch, an overvoltage release, an undervoltage release and the like.

[0048] ​Alternatively, the accessory structure 100 can also be an off-machine accessory connected outside the switch body, such as a mechanical interlocking device, an electrical interlocking device, and the like.

[0049] The specific form of the accessory structure 100 is not specifically limited in the embodiments of the present application.

[0050] In addition, in the present application, the switch body can also have different forms, such as a contactor, a circuit breaker, or a relay, and the like, and the present application is not specifically limited thereto.

[0051] The accessory structure 100 provided by the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0052] Referring to Figure 1 and Figure 2 , the present application provides an accessory structure 100, which includes a base 10 and an upper cover 20. The base 10 and the upper cover 20 are oppositely arranged, one of the base 10 and the upper cover 20 is provided with an assembly boss 30, and the other of the base 10 and the upper cover 20 is provided with an assembly through hole 40.

[0053] The assembly boss 30 is inserted through the assembly through hole 40, and part of the assembly boss 30 is exposed outside the assembly through hole 40. The part of the assembly boss 30 exposed outside the assembly through hole 40 is formed into a fixed unit by riveting, so as to connect the base 10 and the upper cover 20.

[0054] In the embodiments of the present application, the accessory structure 100 includes the oppositely arranged base 10 and upper cover 20, the base 10 and the upper cover 20 are connected to each other, and can form a housing of the accessory structure 100, protect the internal parts, and facilitate the subsequent connection of the accessory structure 100 with the switch body.

[0055] In the present application, the base 10 and the upper cover 20 can be connected by the assembly boss 30 to improve the strength of the base 10 and the upper cover 20. The assembly boss 30 can be arranged and connected to the base 10 and the upper cover 20 in the following two ways.

[0056] The first way is shown in Figure 1 , the base 10 is provided with the assembly boss 30, and the upper cover 20 is provided with the assembly through hole 40. The assembly boss 30 can pass through the assembly through hole 40 and be exposed from the upper cover 20. In this way, the part of the assembly boss 30 exposed from the assembly through hole 40 of the upper cover 20 can be formed into a fixed unit by impact riveting to limit the upper cover 20 and complete the connection of the base 10 and the upper cover 20.

[0057] In the second mode, the upper cover 20 is provided with an assembly boss 30, and the base 10 is provided with an assembly through hole 40. The assembly boss 30 can pass through the assembly through hole 40 and protrude from the base 10. In this way, the part of the assembly boss 30 protruding from the assembly through hole 40 of the base 10 can be formed into a fixing unit to limit the base 10 and complete the connection between the base 10 and the upper cover 20.

[0058] That is, the assembly boss 30 is connected to one of the base 10 and the upper cover 20 and protrudes from the other one of the base 10 and the upper cover 20. The part of the assembly boss 30 protruding from the other one of the base 10 and the upper cover 20 can be formed into a fixing unit to realize the connection between the base 10 and the upper cover 20.

[0059] In the above, the part of the assembly boss 30 protruding from the assembly through hole 40 is formed into a fixing unit to complete the connection between the base 10 and the upper cover 20.

[0060] Therefore, the fixing unit is formed on the side of the base 10 away from the upper cover 20 or the side of the upper cover 20 away from the base 10.

[0061] In the process of connecting the base 10 and the upper cover 20, the base 10 and the upper cover 20 can be matched through the assembly through hole 40 and the assembly boss 30 first. Then, the protruding part of the assembly boss 30 can be riveted to complete the connection.

[0062] In this process, the fixing unit is formed after the base 10 and the upper cover 20 are matched and is located outside the accessory structure 100 housing. Therefore, the fixing unit has little effect on the matching of the base 10 and the upper cover 20, and the possibility that the base 10 and the upper cover 20 cannot be assembled due to the formation of the fixing unit can be reduced.

[0063] In the related art, the base and the upper cover are connected through buckling. Specifically, the base is provided with a clamping piece, and the upper cover is provided with a clamping hole. In the process of connecting the base and the upper cover, the clamping piece can be inserted into the clamping hole and matched with the hole wall of the clamping hole.

[0064] In order to enable the clamping piece to be buckled with the clamping hole, the clamping piece generally has elasticity, which makes the connection strength of the base and the upper cover weak. When the accessory structure is impacted, the clamping piece is prone to deformation, which causes the clamping piece to be separated from the clamping hole and leads to the disconnection of the base and the upper cover.

[0065] In the present application, the part of the assembly boss 30 fixed and limited is located outside the base 10 and the upper cover 20. When the fixing unit is formed, the effect of the setting of the fixing unit on the matching of the base 10 and the upper cover 20 can be reduced.

[0066] In other words, the fixing unit is formed after the base 10 and the upper cover 20 are combined, without passing through the assembly through hole 40, so the fixing unit does not need to be deformed like the clamping piece when passing through the assembly through hole 40. Moreover, the fixing unit is formed by punch riveting, so the fixing unit is more reliable.

[0067] In this way, when the accessory structure 100 is subjected to an impact, the fixing unit is not deformed or is less deformed, reducing the possibility of failure of the fixing unit, causing the base 10 and the upper cover 20 to be disconnected.

[0068] In addition, because the base 10 and the upper cover 20 are connected with greater strength, the torsional resistance of the base 10 and the upper cover 20 is also improved. In this way, the wiring torque of the accessory structure 100 can also be improved. That is, when wiring is performed, the base 10 and the upper cover 20 can withstand greater torque, improving the reliability of the wiring and reducing the possibility of damage to the base 10 and the upper cover 20 caused by the wiring.

[0069] In addition, in the related art, the connection is achieved by the clamping piece and the clamping hole, which also makes the structure of the clamping hole wall and the clamping piece more complex. Therefore, when the base and the upper cover are manufactured, a more complex mold is required, thereby increasing the production cost of the accessory structure.

[0070] In the present application, no clamping structure is additionally provided at the assembly through hole 40, and the assembly boss 30 only needs to pass through the assembly through hole 40, without the need to provide other structures on the assembly boss. This also makes the structure of the upper cover 20 and the base 10 of the present application simpler.

[0071] Furthermore, when the base 10 and the upper cover 20 are manufactured, the required mold structure is also simpler, which can reduce the production cost of the accessory structure 100.

[0072] In summary, in the accessory structure 100 proposed in the present application, the base 10 and the upper cover 20 are connected with greater strength, which can improve the wiring performance and the impact resistance, and improve the reliability of the switch device carrying the above-mentioned accessory structure 100 to work normally. In addition, the manufacturing cost of the accessory structure 100 can also be reduced.

[0073] When the assembly boss 30 is punch riveted, the size of the fixing unit formed will be larger than the size of the assembly boss 30 before punch riveting. In this way, the fixing unit with a larger size limits the one of the base 10 and the upper cover 20 provided with the assembly through hole 40, and the connection of the base 10 and the upper cover 20 is completed.

[0074] When the part of the assembly boss 30 protruding from the assembly through hole 40 is punch riveted, the fixing unit and the assembly through hole 40 can have different relationships to achieve the fixation of the base 10 and the upper cover 20.

[0075] Specifically, the assembly through hole 40 can be located inside the projection of the fixing unit in the direction from the upper cover 20 to the base 10.

[0076] In this way, the projection of the fixing unit can completely cover the assembly through hole 40, so that the fixing unit is opposite to the assembly through hole 40, the possibility of the fixing unit passing through the assembly through hole 40 can be reduced, and the limiting of the base 10 and the upper cover 20 can be realized.

[0077] Alternatively, in the direction from the upper cover 20 to the base 10, the projection of part of the fixing unit can be misaligned with the assembly through hole 40.

[0078] In this way, the fixing unit is not completely opposite to the assembly through hole 40, and the part of the fixing unit that is not opposite to the assembly through hole 40 can be lapped on one of the base 10 and the upper cover 20 provided with the assembly through hole 40, or can limit one of the base 10 and the upper cover 20 provided with the assembly through hole 40.

[0079] It should be noted that in the case that the projection of part of the fixing unit is misaligned with the assembly through hole 40, in order to improve the limiting effect of the fixing unit, the projection area of the part opposite to the assembly through hole 40 can be greater than the projection area of the part misaligned with the assembly through hole 40.

[0080] In some embodiments, the assembly boss 30 can be a piece of thermoplastic material, and the assembly boss 30 is formed into a fixing unit by hot riveting.

[0081] Through the above setting, the base 10 and the upper cover 20 can be connected by hot riveting.

[0082] In a specific setting, the hot riveting head can be pressed on the part of the assembly boss 30 protruding from the assembly through hole 40, and a certain pressure is applied. In this way, this part of the assembly boss 30 is easily deformed after being heated to form a fixing unit to fix the base 10 and the upper cover 20.

[0083] In the embodiments of the present application, the fixing unit is formed by hot riveting, which can facilitate the deformation of the part of the assembly boss 30 protruding from the assembly through hole 40, so that the fixing unit is formed more easily.

[0084] On the other hand, during the hot riveting process, the plastic deformation of the assembly boss 30 is sufficient, which can further improve the connection strength of the base 10 and the upper cover 20.

[0085] In the embodiments of the present application, the size of the formed fixing unit can be greater than the size of the assembly through hole 40. In this way, the fixing unit has a part lapped on one of the base 10 and the upper cover 20 provided with the assembly through hole 40, so that the limiting effect of the fixing unit is better.

[0086] It should be noted that the material of the assembly boss 30 can be polyethylene (PE), polyvinyl chloride (PVC), polypropylene (PP), polystyrene (PS), etc. The specific material of the assembly boss 30 is not limited herein.

[0087] That is, in the embodiment of the present application, the assembly boss 30 exposed from the assembly through hole 40 can be formed in the form of cold riveting or hot riveting to fix the unit.

[0088] In some embodiments, as shown in Figures 1 to 3 The assembly boss 30 can be connected to the connecting surface 101, and an end of the assembly boss 30 away from the connecting surface 101 is provided with a first rounded corner 31 for guiding the assembly boss 30 when the assembly boss 30 is inserted into the assembly through hole 40.

[0089] In the embodiment of the present application, the assembly boss 30 is connected to the connecting surface 101. When the assembly boss 30 is connected to the base 10, the surface of the base 10 facing the upper cover 20 is the connecting surface 101. When the assembly boss 30 is connected to the upper cover 20, the surface of the upper cover 20 facing the base 10 is the connecting surface 101.

[0090] Since the end of the assembly boss 30 away from the connecting surface 101 is provided with the first rounded corner 31, when the base 10 and the upper cover 20 are matched to make the assembly boss 30 pass through the assembly through hole 40, the first rounded corner 31 can guide the assembly boss 30, facilitating the matching of the assembly boss 30 and the assembly through hole 40.

[0091] In addition, the provision of the first rounded corner 31 can also make the side of the assembly boss 30 away from the connecting surface 101 relatively smooth, which can reduce the possibility of scratching the hole wall of the assembly through hole 40 when the assembly boss 30 is inserted into the assembly through hole 40.

[0092] In some embodiments, as shown in Figures 1 to 3 The assembly boss 30 can include a connecting boss 32 and a fixing boss 33 connected to each other, and the connecting boss 32 is connected to the connecting surface 101. The connecting boss 32 is located between the base 10 and the upper cover 20, the fixing boss 33 is inserted into the assembly through hole 40, and part of the fixing boss 33 is exposed outside the assembly through hole 40.

[0093] In the direction from the upper cover 20 to the base 10, the projection of the fixing boss 33 is located inside the projection of the connecting boss 32.

[0094] Through the above arrangement, when the base 10 is connected with the upper cover 20, the fixing boss 33 can be used to form a fixing unit to limit the upper cover 20.

[0095] Since the projection of the fixing boss 33 is located inside the projection of the connecting boss 32, the size of the fixing boss 33 can be smaller compared with the size of the connecting boss 32. In this way, after the fixing unit is formed, the connecting boss 32 and the fixing unit can limit the upper cover 20 on opposite sides of the upper cover 20, improving the reliability of the connection between the base 10 and the upper cover 20.

[0096] In addition, the fixing boss 33 is exposed to the assembly hole 40, and the exposed part of the fixing boss 33 can be punch riveted when the fixing unit is formed.

[0097] The connection of the fixing boss 33 and the connecting boss 32 can also reduce the possibility of excessive punch riveting, damaging the assembly boss 30, or even damaging the upper cover 20 or the base 10.

[0098] In some embodiments, as shown in Figure 1 , Figure 2 and Figure 4 , the number of assembly bosses 30 and assembly holes 40 can be multiple, and the multiple assembly bosses 30 are correspondingly arranged in the assembly holes 40.

[0099] In this way, when the base 10 is connected with the upper cover 20, multiple assembly bosses 30 can be used for connection, and multiple fixing units can be formed, so that there are more connection positions between the base 10 and the upper cover 20.

[0100] Based on this, the connection strength of the base 10 and the upper cover 20 can be improved, further reducing the possibility of the accessory structure 100 being disconnected due to impact, and improving the wiring torque of the accessory structure 100.

[0101] It should be noted that the number of assembly bosses 30 can be 2, 3, 4, 6, etc. Of course, the number of assembly bosses 30 can also be other values, and the embodiments of the present application do not make specific limitations here.

[0102] At least part of the multiple assembly bosses 30 can be distributed along the circumference of the accessory structure 100. For example, when the number of assembly bosses 30 is 6, four assembly bosses 30 can be distributed at intervals along the circumference of the accessory structure 100, and the other two assembly bosses 30 can be connected at the middle part of the accessory structure 100. Of course, the multiple assembly bosses 30 can also be distributed in other ways, and the present application does not make specific limitations here.

[0103] Correspondingly, the number of assembly holes 40 can also be 2, 3, 4, 6, etc.

[0104] In some embodiments, as shown in Figure 1 and Figure 2 , the assembly boss 30 can be arranged on the side of the base 10 facing the upper cover 20, and the assembly boss 30 is integrally formed with the base 10.

[0105] That is, the assembly boss 30 can be integrally formed with the base 10.

[0106] In this way, the assembly boss 30 can be manufactured synchronously during the manufacturing process of the base 10, which can simplify the manufacturing process of the assembly boss 30, reduce the number of parts of the accessory structure 100, and facilitate the assembly of the accessory structure 100.

[0107] In addition, the assembly boss 30 is integrally formed with the base 10, which can improve the connection strength between the assembly boss 30 and the base 10, and reduce the possibility that the connection between the assembly boss 30 and the base 10 is not reliable enough to cause the base 10 to be disconnected from the upper cover 20.

[0108] In the case where the assembly boss 30 is a thermoplastic material piece, the material of the base 10 can also be a thermoplastic material.

[0109] In the case where the assembly boss 30 is connected to the base 10, the assembly through hole 40 is arranged on the upper cover 20, as shown in Figure 4 and Figure 5 .

[0110] In this arrangement, the upper cover 20 can be provided with a second rounded corner 21, which is arranged around the circumference of the assembly through hole 40 and located on the side of the upper cover 20 facing the base 10. The second rounded corner 21 is used to guide the assembly boss 30 when the assembly boss 30 is inserted into the assembly through hole 40.

[0111] Since the upper cover 20 is provided with the second rounded corner 21 around the assembly through hole 40, when the base 10 and the upper cover 20 are arranged in cooperation so that the assembly boss 30 passes through the assembly through hole 40, the second rounded corner 21 can also guide the assembly boss 30, facilitating the cooperation of the assembly boss 30 and the assembly through hole 40.

[0112] In addition, the arrangement of the second rounded corner 21 can make the position where the assembly through hole 40 is arranged on the upper cover 20 relatively smooth, which can reduce the possibility of scratching the assembly boss 30 when the assembly boss 30 is inserted into the assembly through hole 40.

[0113] It should be noted that in the embodiments of the present application, the first rounded corner 31 and the second rounded corner 21 can be arranged at the same time to improve the guiding effect of the assembly boss 30.

[0114] In some embodiments, as shown in Figure 1 , Figure 6 and Figure 7 As shown, the accessory structure 100 can further include a middle base 50, and a mounting cavity is formed between the upper cover 20 and the base 10, and the middle base 50 is arranged in the mounting cavity. The middle base 50 is provided with a mounting through hole 51, and at least one of the plurality of assembly bosses 30 is arranged in the mounting through hole 51 and the assembly through hole 40.

[0115] The accessory structure 100 includes the middle base 50, and the middle base 50 can be provided with a coil terminal post for connecting an auxiliary power supply, or can also fix the wiring inside the accessory structure 100, etc.

[0116] In the embodiment of the present application, the middle base 50 is provided with a mounting through hole 51, and the mounting through hole 51 can be opposite to part of the assembly through hole 40.

[0117] In this way, when the base 10 and the upper cover 20 are connected, the assembly boss 30 is arranged in the mounting through hole 51 and the assembly through hole 40. In the case that the assembly boss 30 forms a fixing unit, the assembly boss 30 can also fix the middle base 50, reducing the possibility of movement of the middle base 50 in the mounting cavity.

[0118] In addition, in order to facilitate the assembly boss 30 to be arranged in the mounting through hole 51, the middle base 50 can also be provided with a third round corner, which is arranged around the circumferential direction of the mounting through hole 51.

[0119] It can be understood that in the embodiment of the present application, the assembly boss 30 is connected to the base 10 as an example. For the case that the assembly boss 30 is arranged on the upper cover 20, it can also be arranged according to the above description.

[0120] For example, when the assembly boss 30 is arranged on the upper cover 20, the assembly boss 30 can be integrally formed with the upper cover 20, and at this time, the second round corner is arranged on the base 10.

[0121] In the accessory structure 100 provided in the present application, the strength of the connection between the base 10 and the upper cover 20 is large, which can improve the wiring performance and the impact resistance, and improve the reliability of the switch device carrying the above-mentioned accessory structure 100 to work normally. In addition, the manufacturing cost of the accessory structure 100 can also be reduced.

[0122] Finally, it should be pointed out that the above embodiments are only specific embodiments of the present application, but the protection scope of the present application is not limited thereto, any changes or replacements within the technical scope disclosed in the present application should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An accessory structure, characterized in that, Includes a base and a top cover, wherein the base and the top cover are disposed opposite to each other: A mounting boss is provided on one of the base and the upper cover; The other of the base and the top cover is provided with an assembly through hole, the assembly boss passes through the assembly through hole, and part of the assembly boss is exposed through the assembly through hole; The mounting boss is formed by punching and riveting the exposed portion of the mounting through hole to connect the base to the top cover; The accessory structure further includes a middle seat, and an installation cavity is formed between the upper cover and the base, with the middle seat disposed in the installation cavity; The middle seat is provided with a mounting through hole, and at least one of the plurality of mounting bosses passes through the mounting through hole and the mounting through hole.

2. The accessory structure according to claim 1, characterized in that, The mounting through hole is located inside the projection of the fixing unit in the direction from the upper cover to the base; Alternatively, in the direction from the top cover to the base, the projection of a portion of the fixing unit is misaligned with the mounting through hole.

3. The accessory structure according to claim 1, characterized in that, The mounting boss is a thermoplastic material part, and the mounting boss is formed by hot riveting to form the fixing unit.

4. The accessory structure according to claim 1, characterized in that, The mounting boss is connected to the connecting surface, and the end of the mounting boss facing away from the connecting surface is provided with a first rounded corner. The first rounded corner is used to guide the mounting boss when it passes through the mounting through hole.

5. The accessory structure according to claim 4, characterized in that, The mounting boss includes a connecting boss and a fixing boss that are connected to each other, and the connecting boss is connected to the connecting surface. The connecting boss is located between the base and the top cover, the fixing boss passes through the assembly through hole, and a portion of the fixing boss is exposed outside the assembly through hole; In the direction from the top cover to the base, the projection of the fixing boss is located inside the projection of the connecting boss.

6. The accessory structure according to claim 1, characterized in that, The number of the mounting bosses and the mounting through holes are both multiple, and the multiple mounting bosses are correspondingly installed in the mounting through holes.

7. The accessory structure according to claim 1, characterized in that, The mounting boss is located on the side of the base facing the upper cover, and the mounting boss and the base are integrally formed.

8. The accessory structure according to claim 7, characterized in that, The upper cover is provided with a second rounded corner, which is arranged circumferentially around the mounting through hole and located on the side of the upper cover facing the base. The second rounded corner is used to guide the mounting boss when the mounting boss passes through the mounting through hole.

9. A switching device, characterized in that, The switching device includes a switch body and an accessory structure as described in any one of claims 1-8, wherein the accessory structure is connected to the switch body.

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