Base assembly and drawer type circuit breaker

Abstract

The utility model provides a base assembly and a drawer type circuit breaker, and belongs to the technical field of electrical equipment. The base assembly comprises a drawer base and a partition plate. The drawer base comprises a plurality of first mounting parts; the plurality of first mounting parts are used for mounting the electric connection structure; the partition plates are connected with the drawer base, one partition plate is arranged between every two adjacent first installation parts, and the two adjacent first installation parts are separated through the partition plates. The partition plate is provided with a first air hole, the first air hole communicates with the first installation part, and the first air hole is used for dissipating heat of the electric connection structure. According to the drawer type circuit breaker, the first vent holes are formed in the partition plate, air circulation in the base assembly is improved, when current passes through the electric connection structure and generates heat at the electric connection structure, air flowing through the first vent holes can take away part of heat, and therefore heat dissipation in the drawer type circuit breaker can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of electrical equipment, and in particular to a base assembly and a drawer-type circuit breaker. Background Art

[0002] A drawer-type circuit breaker is a modular circuit breaker used to protect and control circuits. It typically consists of a breaker body and a drawer housing. The breaker body is slidably connected to the drawer housing and can be swing out of the housing.

[0003] In the prior art, the circuit breaker body within a drawer-type circuit breaker is electrically connected to an external conductive member via an electrical connection structure. However, in actual use, the electrical connection structure is prone to overheating, which can affect the internal components of the drawer-type circuit breaker and thus shorten the overall service life of the drawer-type circuit breaker. Therefore, a base assembly and a drawer-type circuit breaker are urgently needed. Utility Model Content

[0004] The present application provides a base assembly and a drawer-type circuit breaker to improve the heat dissipation effect of the drawer-type circuit breaker.

[0005] In a first aspect, the present application provides a base assembly for use with a drawer-type circuit breaker, the drawer-type circuit breaker including an electrical connection structure. The base assembly comprises a drawer base and a partition. The drawer base includes a plurality of first mounting portions, each of which is used to mount the electrical connection structure. The partition is connected to the drawer base, and a partition is provided between two adjacent first mounting portions to separate the two adjacent first mounting portions. The partition is provided with a first air vent, which is connected to the first mounting portion and is used to dissipate heat from the electrical connection structure.

[0006] Through the above scheme, the present application sets a plurality of first mounting parts on the drawer base, and an electrical connection assembly can be set in each first mounting part, thereby ensuring the normal use of the drawer-type circuit breaker. By using a partition to separate two adjacent first mounting parts, the occurrence of short circuit phenomena between multiple electrical connection structures can be reduced, thereby increasing the reliability of the use of the drawer-type circuit breaker. By setting a first air vent connected to the first mounting part on the partition, the fluidity of the air inside the base assembly can be increased. When the current enters the circuit breaker body through the electrical connection structure, the circulating air can take away the heat generated at the electrical connection structure, thereby increasing the heat dissipation inside the drawer-type circuit breaker, reducing the probability of damage to the internal components of the drawer-type circuit breaker due to excessive heat inside the drawer-type circuit breaker, and increasing the service life of the drawer-type circuit breaker.

[0007] In a possible design, the first vent hole is a through hole, and the first vent hole passes through the partition along a first direction and / or a second direction. The first direction and the second direction are both perpendicular to the installation direction of the electrical connection structure.

[0008] Through the above solution, the first air hole penetrates the partition along the first direction and / or the second direction. This arrangement not only ensures the air permeability of the partition, but also reduces the difficulty in manufacturing the partition. It is only necessary to open a hole on the plate surface of the partition, thereby improving the manufacturing efficiency of the partition and reducing the time cost required for manufacturing the drawer-type circuit breaker.

[0009] In a possible design, the first vent hole is a ventilation blind groove, and the ventilation blind groove is arranged on the partition at intervals along the installation direction of the electrical connection structure.

[0010] Through the above scheme, the first air holes are arranged on the partition along the installation direction of the electrical connection structure, and the multiple first air holes are arranged at intervals, so that the partition can be formed into a grid shape. On the basis of retaining the partition to separate adjacent electrical connection structures, the ventilation effect of the partition can be increased, thereby increasing the heat dissipation effect of the drawer-type circuit breaker.

[0011] In a possible design, the first mounting portion is a through slot provided on the drawer base along the mounting direction of the electrical connection structure, with a gap being provided between the electrical connection structure and a slot wall of the through slot.

[0012] Through the above scheme, since when the base assembly is installed on the drawer-type circuit breaker, one side of the base assembly faces the outside of the drawer-type circuit breaker, and the other side of the base assembly faces the inside of the drawer-type circuit breaker, the present application sets the first mounting portion as a through groove set along the installation direction of the electrical connection structure. When the electrical connection structure is installed on the first mounting portion, one end of the electrical connection structure can be located outside the drawer-type circuit breaker, and the other end of the electrical connection structure can be located inside the drawer-type circuit breaker, so that the electrical connection structure can connect the circuit breaker body with the external power supply.

[0013] Providing a gap between the electrical connection structure and the slot wall of the through slot can increase heat exchange between the inside of the drawer-type circuit breaker and the outside world, improve the heat dissipation effect of the drawer-type circuit breaker, reduce the probability of damage to the internal components of the drawer-type circuit breaker due to excessive heat inside the drawer-type circuit breaker, and increase the service life of the drawer-type circuit breaker.

[0014] In one possible design, the drawer-type circuit breaker further includes a drawer seat, which is provided with a mating portion. The drawer base is provided with a second mounting portion, which is arranged on both sides of the drawer base. The second mounting portion cooperates with the mating portion to fix the base assembly to the drawer seat.

[0015] Through the above solution, the present application provides a matching portion on the drawer seat and a second mounting portion on the drawer base. The second mounting portion cooperates with the matching portion so that the base assembly can be fixed on the drawer seat. This arrangement simplifies the connection method between the base assembly and the drawer seat, saves the assembly time of the drawer-type circuit breaker, and reduces the time cost required for the production of the drawer-type circuit breaker.

[0016] In one possible design, the mating portion protrudes from the drawer base, and the two sides of the drawer base not provided with the second mounting portion are connected to the drawer base via reinforcing ribs. The reinforcing ribs are provided with second ventilation holes, which connect the first mounting portion with the outside world.

[0017] Through the above solution, the present application provides reinforcing ribs on both sides of the drawer base where the second mounting portion is not provided, and connects the drawer base to the drawer seat via the reinforcing ribs, thereby increasing the stability of the connection between the base assembly and the drawer seat and preventing the problem of some drawer bases being unable to be fixed. The provision of the second air vent can increase air circulation within the base assembly, increase heat exchange between the interior of the drawer-type circuit breaker and the outside world, and improve the heat dissipation effect of the drawer-type circuit breaker.

[0018] In one possible design, the reinforcing rib is U-shaped and includes a first plate, a second plate, and a third plate connected in sequence. The first plate is fixedly connected to the drawer base, the first plate or the third plate is fixedly connected to the drawer seat, and the second vent passes through the second plate.

[0019] Through the above solution, the first plate, the second plate, and the third plate are sequentially connected to form a U-shaped reinforcing rib, which makes it easier to connect the drawer base and the drawer seat with the reinforcing rib. The first plate can simultaneously connect the drawer seat and the drawer base, or the first plate can connect the drawer seat and the third plate can connect the drawer base. This can make the fixation of the reinforcing rib more stable, and the connection between the drawer base and the drawer seat can be completed by the connecting action of the second plate. The second air vent is provided on the second plate, which connects the interior of the base assembly with the outside world, increases air circulation within the base assembly, and can increase heat exchange between the interior of the drawer-type circuit breaker and the outside world, thereby improving the heat dissipation effect of the drawer-type circuit breaker.

[0020] In one possible design, the drawer base is plate-shaped and includes multiple third mounting portions. A third mounting portion is provided between two adjacent first mounting portions to separate the two adjacent first mounting portions. Multiple partitions are provided, each corresponding to the third mounting portions. The partitions are mounted to the corresponding third mounting portions, and the partitions are detachably connected to the drawer base.

[0021] Through the above scheme, the present application sets multiple third mounting parts on the drawer base, and sets the third mounting part between the two first mounting parts, so that when the partition is installed on the third mounting part, the partition can separate the two adjacent first mounting parts. In this way, it not only meets the requirement of using the partition to separate the two adjacent first mounting parts, but also makes the partition detachable and connected to the drawer base. When the partition is damaged or aged, the damaged or aged partition can be replaced separately, saving the later maintenance cost of the drawer-type circuit breaker.

[0022] In one possible design, the base assembly further includes a safety shield. The safety shield is disposed on a side of the partition away from the drawer base and has a wiring hole. The external conductive member passes through the wiring hole and is connected to the electrical connection structure.

[0023] Through the above solution, the present application provides a safety shield on the side of the partition away from the drawer base to shield the electrical connection structure. The provision of wiring holes on the safety shield ensures the normal use of the drawer-type circuit breaker. When the circuit breaker body needs to be connected to an external power source via the electrical connection structure, the wiring terminals of the circuit breaker body only need to be connected to the electrical connection structure through the wiring holes. This arrangement can prevent the electrical connection structure from being exposed to the outside over a large area, reduce the probability of an operator accidentally touching the electrical connection structure and causing an electric shock, and improve the safety of the drawer-type circuit breaker.

[0024] In a second aspect, the present application provides a drawer-type circuit breaker, comprising a drawer base, an electrical connection structure, a circuit breaker body, and the base assembly described in the first aspect. The base assembly is connected to one side of the drawer base, and the electrical connection structure is partially disposed within the base assembly. One end of the electrical connection structure is electrically connected to an external power source, and the other end of the electrical connection structure is electrically connected to the circuit breaker body. The circuit breaker body is slidably connected to the drawer base.

[0025] Through the above scheme, the present application increases the air circulation inside the base assembly by setting a first air vent on the partition. When current passes through the electrical connection structure and generates heat at the electrical connection structure, the air flowing through the first air vent can take away part of the heat, thereby increasing the heat dissipation inside the drawer-type circuit breaker.

[0026] The beneficial effects of the drawer-type circuit breaker provided in the second aspect can be referred to the beneficial effects brought about by the first aspect and the various possible implementation methods of the first aspect, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic structural diagram of a drawer-type circuit breaker provided in an embodiment of the present application.

[0028] Figure 2A schematic structural diagram of the base assembly provided in an embodiment of the present application at one viewing angle.

[0029] Figure 3 This is a structural diagram of the drawer base provided in an embodiment of the present application.

[0030] Figure 4 This is a schematic diagram of one structure of the partition provided in an embodiment of the present application.

[0031] Figure 5 Another structural schematic diagram of the partition provided in an embodiment of the present application.

[0032] Figure 6 A schematic structural diagram of the base assembly provided in an embodiment of the present application from another perspective.

[0033] Figure 7 A partial structural assembly diagram of the base assembly provided in an embodiment of the present application.

[0034] Figure 8 A schematic structural diagram of the reinforcing ribs provided in an embodiment of the present application.

[0035] Figure 9 An exploded view of the drawer base and partition provided in an embodiment of the present application.

[0036] Figure 10 A schematic structural diagram of a safety baffle assembled on a base assembly provided in an embodiment of the present application.

[0037] Description of reference numerals:

[0038] 100, drawer base; 110, first mounting portion; 111, gap; 120, second mounting portion; 130, third mounting portion;

[0039] 200, partition; 210, first vent hole;

[0040] 300, drawer seat; 310, mating portion;

[0041] 400, reinforcing rib; 410, first plate; 420, second plate; 430, third plate; 440, second vent hole;

[0042] 500, safety baffle; 510, wiring hole;

[0043] 600, electrical connection structure;

[0044] OX, first direction; OY, second direction. DETAILED DESCRIPTION

[0045] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0047] The terms "comprises", "comprising" and "having" and any variations thereof in the specification, claims and drawings of this application are intended to cover but not exclude other contents. The word "a" or "an" does not exclude the presence of a plurality.

[0048] References to "embodiments" herein mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase "embodiment" in various places in the specification does not necessarily refer to the same embodiment, nor does it necessarily refer to independent or alternative embodiments that are mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0049] The term "and / or" in this document simply describes a relationship between related objects, indicating that three possible relationships exist. For example, "A and / or B" can mean: A exists alone, A and B exist simultaneously, or B exists alone. Additionally, the character " / " in this document generally indicates that the related objects are in an "or" relationship.

[0050] The directional words appearing in the following description are all directions shown in the drawings, and do not limit the specific structure of the static contact of a circuit breaker and the circuit breaker of the present application. For example, in the description of the present application, the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present application.

[0051] In addition, the terms "first", "second", etc. in the description and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order, and may explicitly or implicitly include one or more such features.

[0052] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, the "connection" or "connection" of a mechanical structure may refer to a physical connection. For example, the physical connection may be a fixed connection, such as a fixed connection through a fixing part, such as a fixed connection through a screw, bolt or other fixing part; the physical connection may also be a detachable connection, such as a mutual snap-on or snap-fit ​​connection; the physical connection may also be an integral connection, for example, a connection formed by welding, bonding or integral molding.

[0053] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

[0054] Figure 1 This is a schematic structural diagram of a drawer-type circuit breaker provided in an embodiment of the present application. Figure 2 A schematic structural diagram of the base assembly provided in an embodiment of the present application at one viewing angle.

[0055] like Figure 1 as well as Figure 2 As shown, the present application provides a drawer-type circuit breaker, which includes a drawer base 300, an electrical connection structure 600, a circuit breaker body, and a base assembly. The base assembly is connected to one side of the drawer base 300, and the electrical connection structure 600 is partially disposed within the base assembly. One end of the electrical connection structure 600 is electrically connected to an external power source, and the other end of the electrical connection structure 600 is electrically connected to the circuit breaker body. The circuit breaker body is slidably connected to the drawer base 300.

[0056] The circuit breaker body can be connected to the inside of the drawer seat 300 through a slide rail. When the circuit breaker body needs to be repaired or replaced, the circuit breaker body can be shaken out of the drawer seat 300 for operation.

[0057] A plurality of electrical connection structures 600 are provided in the base assembly, and external current can flow into the circuit breaker body through the electrical connection structures 600.

[0058] The plurality of electrical connection structures 600 are separated by a partition 200 , and the partition 200 is provided with a first vent hole 210 for increasing air circulation inside the base assembly.

[0059] In summary, the present application increases the air circulation inside the base assembly by setting a first air hole 210 on the partition 200. When current passes through the electrical connection structure 600 and generates heat at the electrical connection structure 600, the air flowing through the first air hole 210 can take away part of the heat, thereby increasing the heat dissipation inside the drawer-type circuit breaker.

[0060] The base assembly mentioned in the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0061] Figure 3 This is a structural diagram of the drawer base provided in the embodiment of the present application. Figures 1 to 3 As shown, the present application provides a base assembly. The base assembly includes: a drawer base 100 and a partition 200. The drawer base 100 includes a plurality of first mounting portions 110, and the plurality of first mounting portions 110 are used to mount an electrical connection structure 600. The partition 200 is connected to the drawer base 100, and a partition 200 is provided between two adjacent first mounting portions 110 to separate the two adjacent first mounting portions 110 through the partition 200. The partition 200 is provided with a first air vent 210, which is connected to the first mounting portion 110, and the first air vent 210 is used to dissipate heat from the electrical connection structure 600.

[0062] The drawer base 100 may be plate-shaped. A plurality of first mounting portions 110 may be spaced apart and arranged on the drawer base 100. Each first mounting portion 110 may include an electrical connection structure 600 therein. The electrical connection structure 600 may be fixed to the first mounting portion 110 by bolts.

[0063] To reduce the occurrence of short circuits between the multiple electrical connection structures 600, the intervals between the multiple first mounting portions 110 can be separated by providing partitions 200. However, the provision of partitions 200 reduces the air flow inside the base assembly, which results in the heat generated by current passing through the electrical connection structures 600 not being promptly reduced. Therefore, the present application provides first ventilation holes 210 on the partitions 200.

[0064] The first ventilation holes 210 can be integrally formed with the partition plate 200, or they can be provided on the partition plate 200 after the partition plate 200 is formed by carving or notching. Because the partition plate 200 separates the multiple first mounting portions 110 into multiple relatively closed areas, providing the first ventilation holes 210 on the partition plate 200 in communication with the first mounting portions 110 can improve air circulation in the area where the first mounting portions 110 are located.

[0065] In summary, the present application sets a plurality of first mounting portions 110 on the drawer base 100, and an electrical connection assembly can be set in each first mounting portion 110, thereby ensuring the normal use of the drawer-type circuit breaker. By using a partition 200 to separate two adjacent first mounting portions 110, the occurrence of short circuits between the multiple electrical connection structures 600 can be reduced, thereby increasing the reliability of the drawer-type circuit breaker. By setting a first air vent 210 connected to the first mounting portion 110 on the partition 200, the fluidity of the air inside the base assembly can be increased. When the current enters the circuit breaker body through the electrical connection structure 600, the circulating air can carry away the heat generated at the electrical connection structure 600, thereby increasing the heat dissipation inside the drawer-type circuit breaker, reducing the probability of damage to the internal components of the drawer-type circuit breaker due to excessive heat inside the drawer-type circuit breaker, and increasing the service life of the drawer-type circuit breaker.

[0066] The first vent holes 210 can be arranged in various ways, and two of the arrangements will be described in detail below with reference to the accompanying drawings.

[0067] Figure 4 This is a schematic diagram of one of the structures of the partition provided in the embodiment of the present application. The first setting form is as follows Figure 4 As shown, the first air hole 210 is a through hole, and the first air hole 210 passes through the partition 200 along the first direction OX and / or the second direction OY.

[0068] Both the first direction OX and the second direction OY are perpendicular to the installation direction of the electrical connection structure 600 .

[0069] Since the electrical connection structure 600 is installed toward the first mounting portion 110 and the partition plate 200 separates two adjacent first mounting portions 110 , the installation direction of the partition plate 200 may be the same as the installation direction of the electrical connection structure 600 .

[0070] like Figure 3 As shown, the drawer base 100 is provided with multiple rows of partitions 200 and multiple columns of partitions 200, and the first ventilation holes 210 can only pass through the multiple rows of partitions 200, or the first ventilation holes 210 can only pass through the multiple columns of partitions 200. Alternatively, the first ventilation holes 210 can pass through both the multiple rows of partitions 200 and the multiple columns of partitions 200.

[0071] When the first setting form is selected, the first air hole 210 passes through the partition 200 along the first direction OX and / or the second direction OY. This setting not only ensures the air permeability of the partition 200, but also reduces the difficulty of manufacturing the partition 200. It is only necessary to open a hole on the plate surface of the partition 200, thereby improving the manufacturing efficiency of the partition 200 and reducing the time cost required for manufacturing the drawer-type circuit breaker.

[0072] Figure 5 This is another structural diagram of the partition provided in the embodiment of the present application. The second setting form is as follows Figure 5 As shown, the first ventilation holes 210 are ventilation blind grooves, which are arranged at intervals on the partition 200 along the installation direction of the electrical connection structure 600 .

[0073] The bottom of the ventilation blind groove is close to the connection between the partition plate 200 and the drawer base 100. The ventilation blind groove is arranged at intervals on the partition plate 200, so that the partition plate 200 can be formed into a grid shape.

[0074] When the second setting form is selected, the first air holes 210 are set on the partition 200 along the installation direction of the electrical connection structure 600, and multiple first air holes 210 are set at intervals, so that the partition 200 can be formed into a grid shape. On the basis of retaining the partition 200 to separate the adjacent electrical connection structures 600, the ventilation effect of the partition 200 can also be increased, thereby increasing the heat dissipation effect of the drawer-type circuit breaker.

[0075] In order to increase the heat dissipation effect of the base assembly, the present application also improves the first mounting portion 110 . The first mounting portion 110 will be described in detail below with reference to the accompanying drawings.

[0076] Figure 6 This is a schematic diagram of the structure of the base assembly provided in the embodiment of the present application from another perspective. Figure 6 As shown, the first mounting portion 110 is a through slot provided on the drawer base 100 along the mounting direction of the electrical connection structure 600. A gap 111 is provided between the electrical connection structure 600 and the slot wall of the through slot.

[0077] The first mounting portion 110 may pass through the drawer base 100 to form a through groove on the drawer base 100. The first mounting portion 110 may be integrally formed with the drawer base 100, or the first mounting portion 110 may be provided after the drawer base 100 is formed by grooving or carving.

[0078] The first mounting portion 110 may be a cross-shaped slot or a T-shaped slot. For example, when the first mounting portion 110 is a cross-shaped slot, when the electrical connection structure 600 is mounted on the first mounting portion 110, the electrical connection structure 600 may be fixed to the drawer base 100 via bolts, such that the electrical connection structure 600 is located in the middle of the cross-shaped slot and does not contact the walls of the cross-shaped slot.

[0079] To sum up, since when the base assembly is installed on the drawer-type circuit breaker, one side of the base assembly faces the outside of the drawer-type circuit breaker, and the other side of the base assembly faces the inside of the drawer-type circuit breaker, the present application sets the first mounting portion 110 as a through groove set along the installation direction of the electrical connection structure 600. When the electrical connection structure 600 is installed on the first mounting portion 110, one end of the electrical connection structure 600 can be located outside the drawer-type circuit breaker, and the other end of the electrical connection structure 600 can be located inside the drawer-type circuit breaker, so that the electrical connection structure 600 can connect the circuit breaker body with the external power supply.

[0080] A gap 111 is provided between the electrical connection structure 600 and the wall of the through slot, which can increase heat exchange between the inside of the drawer-type circuit breaker and the outside world, improve the heat dissipation effect of the drawer-type circuit breaker, reduce the probability of damage to the internal components of the drawer-type circuit breaker due to excessive heat inside the drawer-type circuit breaker, and increase the service life of the drawer-type circuit breaker.

[0081] The installation of the base assembly will be described in detail below with reference to the accompanying drawings.

[0082] like Figure 1 as well as Figure 3 As shown, the drawer-type circuit breaker further includes a drawer seat 300, which is provided with a mating portion 310. The drawer base 100 is provided with a second mounting portion 120, which is arranged on both sides of the drawer base 100. The second mounting portion 120 cooperates with the mating portion 310 to fix the base assembly to the drawer seat 300.

[0083] The mating portion 310 may be a plate-like structure disposed on the drawer seat 300 toward the drawer base 100. The mating portion 310 may include a first mating portion and a second mating portion, and the first mating portion and the second mating portion may be disposed on either side of the drawer seat 300. The second mounting portion 120 may be a plate-like structure extending from either side of the drawer base 100, and the second mounting portions 120 on either side of the drawer base 100 may correspond to the first mating portion and the second mating portion, respectively.

[0084] There are many ways to fix the base assembly to the drawer seat 300. For example, the mating portion 310 can be provided with a threaded hole, and the second mounting portion 120 can be provided with a through hole, and a bolt is passed through the through hole and fixedly connected to the threaded hole. Alternatively, both the mating portion 310 and the second mounting portion 120 are provided with through holes, and a bolt is passed through the through holes provided on the mating portion 310 and the second mounting portion 120, and then the bolt is tightened with a nut. Alternatively, the mating portion 310 is provided with a clamping block, and the second mounting portion 120 is provided with a clamping groove, and the base assembly is clamped to the drawer seat 300. This application does not limit the connection method between the base assembly and the drawer seat 300. It is only necessary that the base assembly will not fall off the drawer seat 300 after being connected to the drawer seat 300.

[0085] In summary, in the present application, a mating portion 310 is provided on the drawer base 300, and a second mounting portion 120 is provided on the drawer base 100. By mating the second mounting portion 120 with the mating portion 310, the base assembly can be fixed to the drawer base 300. This setting simplifies the connection method between the base assembly and the drawer base 300, saves the assembly time of the drawer circuit breaker, and reduces the time cost required for the production of the drawer circuit breaker.

[0086] To increase the stability of the connection between the base assembly and the drawer base 300, as Figure 1 shown, in the present application, reinforcing ribs 400 are provided on both sides of the drawer base 100 where the second mounting portion 120 is not provided. The stability of the drawer base 100 is improved through the reinforcing ribs 400. Additionally, the reinforcing ribs 400 can also be fixedly connected to the drawer base 300 to further improve the stability of the drawer base 300.

[0087] The reinforcing ribs 400 can be made of insulating materials or metal materials. It should be noted that if metal materials are used to manufacture the reinforcing ribs 400, in order to avoid the occurrence of short - circuit phenomena, sufficient creepage distance needs to be left between the reinforcing ribs 400 and the electrical connection structure 600.

[0088] Figure 7 This is a partial structural assembly drawing of the base assembly provided by the embodiment of the present application. As Figure 7 shown, in order to increase the air circulation inside the base assembly, in the present application, a second ventilation hole 440 is also provided on the reinforcing ribs 400. The second ventilation hole 440 connects the first mounting portion 110 with the outside.

[0089] The second ventilation hole 440 can be a through - hole provided on the reinforcing ribs 400. The second ventilation hole 440 can be integrally formed with the reinforcing ribs 400, or can also be provided on the reinforcing ribs 400 by methods such as slotting or engraving after the reinforcing ribs 400 are formed.

[0090] In summary, in the present application, reinforcing ribs 400 are provided on both sides of the drawer base 100 where the second mounting portion 120 is not provided, and the drawer base 100 is connected to the drawer base 300 through the reinforcing ribs 400, which can increase the stability of the connection between the base assembly and the drawer base 300. Moreover, it can also avoid the problem that some drawer bases 100 cannot be fixed. Setting the second ventilation hole 440 can increase the air circulation inside the base assembly, increase the heat exchange between the inside of the drawer circuit breaker and the outside, and improve the heat dissipation effect of the drawer circuit breaker.

[0091] The setting form of the reinforcing ribs 400 can be various. For example, the reinforcing ribs 400 can be in the form of "|" shape, "L" shape or "U" shape, etc. Figure 8 This is a schematic diagram of the structure of the reinforcing rib provided in an embodiment of the present application. This application only uses the reinforcing rib 400 as a "U" shape for illustration.

[0092] like Figure 8 As shown, the reinforcing rib 400 is U-shaped and includes a first plate 410, a second plate 420, and a third plate 430 connected in sequence. The first plate 410 is fixedly connected to the drawer base 100, and the first plate 410 or the third plate 430 is fixedly connected to the drawer seat 300. The second ventilation hole 440 passes through the second plate 420.

[0093] The first plate 410, the second plate 420 and the third plate 430 can be integrally formed to form a U-shaped structure, or they can be formed separately and then assembled into the U-shaped structure. The first plate 410, the second plate 420 and the third plate 430 can all be plate-shaped structures.

[0094] The first plate 410 can be fixedly connected to the drawer base 100 by bolts, and the first plate 410 or the third plate 430 can also be fixedly connected to the drawer seat 300 by bolts. At this time, the second plate 420 faces the inside of the base assembly and the second plate 420 faces the electrical connection structure 600.

[0095] Through the above arrangement, the first plate 410, the second plate 420, and the third plate 430 are sequentially connected to form a U-shaped reinforcing rib 400, which makes it easier for the reinforcing rib 400 to connect the drawer base 100 and the drawer seat 300. The first plate 410 can simultaneously connect the drawer base 100 and the drawer seat 300. Alternatively, the first plate 410 can connect the drawer base 100 and the drawer seat 300, or the third plate 430 can connect the drawer base 100. This makes the fixation of the reinforcing rib 400 more stable, and the connection between the drawer base 100 and the drawer seat 300 is completed through the connection of the second plate 420. The second air vent 440 is provided on the second plate 420, which connects the interior of the base assembly with the outside world, increases air circulation within the base assembly, and can also increase heat exchange between the interior of the drawer-type circuit breaker and the outside world, thereby improving the heat dissipation effect of the drawer-type circuit breaker.

[0096] As one of the important components of the base assembly, the partition plate 200 can be arranged in various forms. For example, the partition plate 200 can be fixedly mounted on the drawer base 100, that is, the partition plate 200 can be integrated with the drawer base 100, or the partition plate 200 can be detachably connected to the drawer base 100. The following will be specifically described with reference to the accompanying drawings to describe the detachable connection between the partition plate 200 and the drawer base 100.

[0097] Figure 9 This is an exploded view of the drawer base and partition provided in the embodiment of the present application. Figure 9 As shown, the drawer base 100 is plate-shaped and includes a plurality of third mounting portions 130. A third mounting portion 130 is provided between two adjacent first mounting portions 110 to separate the two adjacent first mounting portions 110. There are a plurality of partitions 200, each corresponding to the third mounting portions 130. The partitions 200 are mounted on the corresponding third mounting portions 130, and are detachably connected to the drawer base 100.

[0098] The partition 200 can be snapped into the third mounting portion 130, or it can be connected to the third mounting portion 130 via bolts. When the partition 200 is snapped into the third mounting portion 130, the partition 200 can be provided with a snap block, and the third mounting portion 130 can be a snap slot. Alternatively, the partition 200 can be provided with a snap slot, and the third mounting portion 130 can be a protrusion. When the partition 200 is connected to the third mounting portion 130 via bolts, the partition 200 can be provided with a through hole, and the third mounting portion 130 can be provided with a threaded hole.

[0099] When the third mounting portion 130 is configured as a slot, the third mounting portion 130 may be a blind slot. The third mounting portion 130 may be integrally formed with the drawer base 100, or the third mounting portion 130 may be separately formed from the base and then assembled.

[0100] Through the above-mentioned setting, the present application sets a plurality of third mounting parts 130 on the drawer base 100, and sets the third mounting part 130 between the two first mounting parts 110, so that when the partition 200 is installed on the third mounting part 130, the partition 200 can separate the two adjacent first mounting parts 110. In this way, it not only meets the requirement of using the partition 200 to separate the two adjacent first mounting parts 110, but also makes the partition 200 detachable and connected to the drawer base 100. When the partition 200 is damaged or aged, the damaged or aged partition 200 can be replaced separately, saving the later maintenance cost of the drawer-type circuit breaker.

[0101] Safety issues have always been an important issue that cannot be ignored during the use of electrical equipment. In order to make the drawer-type circuit breaker safer during use, this application has made further improvements. The improved parts will be described in detail below with reference to the accompanying drawings.

[0102] Figure 10 This is a schematic diagram of the structure of the base assembly provided in the embodiment of the present application, which is equipped with a safety baffle. Figure 10 As shown, the base assembly further includes a safety shield 500. The safety shield 500 is disposed on a side of the partition 200 away from the drawer base 100 and has a wiring hole 510. The external conductive member passes through the wiring hole 510 and is connected to the electrical connection structure 600.

[0103] The safety shield 500 can be a plate-like structure and is disposed on the side of the partition 200 away from the drawer base 100, that is, the safety shield 500 is disposed within the drawer seat 300. The wiring hole 510 can be a through-hole provided in the safety shield 500, and the location of the wiring hole 510 is opposite to the location of the electrical connection structure 600. The wiring hole 510 can be integrally formed with the safety shield 500, or the wiring hole 510 can be provided in the safety shield 500 after the safety shield 500 is formed by carving or slotting.

[0104] Through the above arrangement, the present application provides a safety shield 500 on the side of the partition 200 away from the drawer base 100 to shield the electrical connection structure 600. The provision of a wiring hole 510 on the safety shield 500 ensures the normal use of the drawer-type circuit breaker. When the circuit breaker body needs to be connected to an external power source via the electrical connection structure 600, the wiring terminals of the circuit breaker body only need to be connected to the electrical connection structure 600 through the wiring hole 510. This arrangement prevents a large area of ​​the electrical connection structure 600 from being exposed to the outside, reduces the probability of an operator accidentally touching the electrical connection structure 600 and suffering an electric shock, and improves the safety of the drawer-type circuit breaker.

Claims

1. A base assembly, applied to a drawer-type circuit breaker, the drawer-type circuit breaker including an electrical connection structure, characterized in that: The base assembly comprises: A drawer base, the drawer base comprising a plurality of first mounting portions, the plurality of first mounting portions being used for mounting the electrical connection structure; a partition plate connected to the drawer base, wherein the partition plate is provided between two adjacent first mounting portions so as to separate the two adjacent first mounting portions through the partition plate; The partition is provided with a first air vent, the first air vent is connected to the first mounting portion, and the first air vent is used to dissipate heat from the electrical connection structure.

2. The base assembly according to claim 1, wherein: The first air vent is a through hole, and the first air vent passes through the partition along the first direction and / or the second direction; The first direction and the second direction are both perpendicular to the installation direction of the electrical connection structure.

3. The base assembly according to claim 1, wherein: The first vent holes are blind vent grooves, and the blind vent grooves are arranged on the partition at intervals along the installation direction of the electrical connection structure.

4. The base assembly according to claim 1, wherein: The first mounting portion is a through groove provided on the drawer base along the mounting direction of the electrical connection structure; There is a gap between the electrical connection structure and the groove wall of the through groove.

5. The base assembly according to claim 1, wherein: The drawer-type circuit breaker further includes a drawer seat, and the drawer seat is provided with a matching portion; The drawer base is provided with a second mounting portion, which is arranged on both sides of the drawer base. The second mounting portion cooperates with the matching portion to fix the base assembly to the drawer seat.

6. The base assembly according to claim 5, wherein: The matching portion protrudes from the drawer seat, and the two sides of the drawer base not provided with the second mounting portion are connected to the drawer seat via reinforcing ribs; The reinforcing rib is provided with a second air vent, and the second air vent connects the first mounting portion with the outside.

7. The base assembly according to claim 6, wherein: The reinforcing rib is U-shaped, and the reinforcing rib comprises a first plate, a second plate and a third plate connected in sequence; The first plate is fixedly connected to the drawer base, the first plate or the third plate is fixedly connected to the drawer seat, and the second air vent runs through the second plate.

8. The base assembly according to any one of claims 1 to 7, characterized in that: The drawer base is plate-shaped and includes a plurality of third mounting portions, wherein one third mounting portion is provided between two adjacent first mounting portions, so as to separate the two adjacent first mounting portions by the third mounting portion; There are multiple partitions, and the multiple partitions correspond to the multiple third installation parts one by one. The multiple partitions are respectively installed on the corresponding multiple third installation parts, and the multiple partitions are detachably connected to the drawer base.

9. The base assembly according to claim 1, wherein: The base assembly also includes a safety baffle; The safety baffle is arranged on a side of the partition away from the drawer base, and the safety baffle is provided with a wiring hole; The external conductive member passes through the wiring hole and is connected to the electrical connection structure.

10. A drawer type circuit breaker, characterized in that: The invention comprises a drawer seat, an electrical connection structure, a circuit breaker body and a base assembly according to any one of claims 1 to 9; The base assembly is connected to one side of the drawer seat, and the electrical connection structure is arranged in the base assembly; One end of the electrical connection structure is electrically connected to an external power source, and the other end of the electrical connection structure is electrically connected to the circuit breaker body; The circuit breaker body is slidably connected to the drawer seat.

Images