Shell mounting structure and circuit breaker

Abstract

The utility model belongs to the technical field of low-voltage electric appliances, and discloses a shell mounting structure and a circuit breaker. The shell mounting structure comprises a shell and a fastening sealing piece. Wherein the shell comprises a first shell and a second shell which are matched with each other, a first connecting part is arranged on the first shell, and a second connecting part is arranged on the second shell; the fastening sealing piece comprises a sealing plate and matched connecting parts arranged on the two opposite sides of the sealing plate, the sealing plate is arranged at the partial connecting position of the first shell and the second shell in a sealing and covering mode, and the two matched connecting parts are connected with the first connecting part and the second connecting part respectively. According to the shell mounting structure, the first shell and the second shell which form the shell can be fastened, the sealing performance of the shell is improved, and the shell mounting structure is simple and convenient to mount and dismount.

Description

Technical Field

[0001] The utility model relates to the technical field of low-voltage electrical appliances, in particular to a shell installation structure and a circuit breaker. Background Art

[0002] The housing of a miniature circuit breaker generally consists of a base and a cover, which are connected by rivets. According to the structural characteristics of the housing, the rivets are evenly arranged at the edge and middle of the housing.

[0003] Due to the influence of the internal structure of the circuit breaker, some circuit breakers do not have enough space to design the rivet structure in the corners above the front of the circuit breaker. These parts are only set to fit, resulting in insufficient sealing and prone to gaps. Especially in harsh environments such as high temperature and high humidity, the gaps will increase, seriously reducing the sealing of the circuit breaker, and thus affecting the safety and reliability of the circuit breaker.

[0004] Therefore, there is an urgent need to provide a housing mounting structure and a circuit breaker to solve the above technical problems. Utility Model Content

[0005] According to one aspect of the present invention, the present invention provides a shell installation structure that can fasten a first shell and a second shell to form a shell, thereby improving the sealing performance of the shell and having a simple structure and being easy to install and disassemble.

[0006] To achieve this purpose, the present invention adopts the following technical solutions:

[0007] The housing mounting structure includes:

[0008] A housing, the housing comprising a first housing and a second housing that cooperate with each other, the first housing being provided with a first connecting portion, and the second housing being provided with a second connecting portion;

[0009] The fastening seal includes a sealing plate and matching connecting parts arranged on opposite sides of the sealing plate. The sealing cover of the sealing plate is arranged at the partial connection between the first shell and the second shell, and the two matching connecting parts are respectively connected to the first connecting part and the second connecting part.

[0010] Optionally, after the first shell and the second shell are connected, a handle surface for arranging a circuit breaker handle is formed, and the sealing plate sealing cover is provided at the connection between the first shell and the second shell on the handle surface.

[0011] Optionally, the first shell includes a first buckling portion, the second shell includes a second buckling portion, the second buckling portion is buckled with the first buckling portion, a sealing groove is provided on the sealing plate, and the sealing plate is sealed and buckled with the first buckling portion and the second buckling portion through the sealing groove.

[0012] Optionally, the first snap-fitting portion includes a first sealing connecting plate and a connecting groove arranged on the inner side of the first sealing connecting plate, and the second snap-fitting portion includes a second sealing connecting plate and a latching protrusion arranged on the second sealing connecting plate, the latching protrusion is latched in the connecting groove, and the second sealing connecting plate abuts against the first sealing connecting plate.

[0013] Optionally, the second buckling portion further includes a third sealing connecting plate arranged on the outside of the second sealing connecting plate, the third sealing connecting plate covers a portion of the first sealing connecting plate and extends to a side of the first sealing connecting plate away from the second sealing connecting plate.

[0014] Optionally, a sealing rib is provided on the side of the first sealing connecting plate away from the second sealing connecting plate, and a sealing surface and a stop surface are provided at the end of the third sealing connecting plate, wherein the sealing surface is attached to the outer surface of the sealing rib, and the stop surface is attached to the side surface of the sealing rib.

[0015] Optionally, the outer surface of the sealing plate is flush with the outer surface of the third sealing connecting plate; and / or the mating connection portion connected to the first connection portion is flush with the outer surface of the first shell, and the mating connection portion connected to the second connection portion is flush with the outer surface of the second shell.

[0016] Optionally, the first connection part and the second connection part are both card slots, the mating connection part is an elastic clip, the two elastic clips form a "U" shape with the sealing plate, and the elastic clips are snapped into the corresponding card slots; or, the first connection part is provided at one end of the first snapping part away from the second snapping part, and the second connection part is provided at one end of the second snapping part away from the first snapping part, the mating connection part is arranged on the opposite side walls of the sealing groove, and the mating connection part is snapped into the first connection part or the second connection part corresponding to it.

[0017] Optionally, the first shell includes a third buckling portion, the end of which is provided with an outer step structure, and the second shell includes a fourth buckling portion, the end of which is provided with an inner step structure, and the inner step structure cooperates with the outer step structure.

[0018] According to another aspect of the present invention, the present invention further provides a circuit breaker, comprising a circuit breaker body and a housing mounting structure according to any of the above technical solutions, wherein the circuit breaker body is disposed in a housing of the housing mounting structure.

[0019] Beneficial effects of the utility model:

[0020] The utility model provides a housing mounting structure comprising a housing and a fastening seal. The housing comprises a first housing and a second housing that cooperate with each other. The fastening seal comprises a sealing plate and mating connecting portions disposed on opposite sides of the sealing plate. The two mating connecting portions are respectively connected to a first connecting portion on the first housing and a second connecting portion on the second housing to fasten the first and second housings, thereby reducing the gap between the first and second housings. Furthermore, a sealing cover of the sealing plate is disposed at a portion of the connection between the first and second housings to improve the sealing performance of the housing. This housing mounting structure is suitable for locations within the housing where rivets are difficult to install. It has a simple structure and is easy to install and remove.

[0021] The utility model also provides a circuit breaker, comprising a circuit breaker body and the above-mentioned housing mounting structure. Due to the adoption of the above-mentioned housing mounting structure, the circuit breaker has better sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0023] Figure 1 This is a structural diagram of the housing installation structure provided in Example 1 of the present utility model;

[0024] Figure 2 This is a structural diagram of a fastening seal provided in a first embodiment of the present invention from one viewing angle;

[0025] Figure 3 This is a structural diagram of the fastening seal provided in another perspective of the first embodiment of the present invention;

[0026] Figure 4 This is a partial schematic diagram of the housing provided in Example 1 of the present utility model. Figure 1 ;

[0027] Figure 5 This is a partial schematic diagram of the first shell and the second shell provided in the first embodiment of the present invention in the disassembled state. Figure 1 ;

[0028] Figure 6 This is a partial schematic diagram of the first shell and the second shell provided in the first embodiment of the present invention in the disassembled state. Figure 2 ;

[0029] Figure 7 This is a partial schematic diagram of the housing provided in Example 1 of the present utility model. Figure 2 ;

[0030] Figure 8 This is a structural diagram of the housing installation structure provided in the second embodiment of the present utility model;

[0031] Figure 9 This is a partial schematic diagram of the housing provided in the second embodiment of the present utility model;

[0032] Figure 10 This is a schematic structural diagram of the fastening seal provided in the second embodiment of the present invention.

[0033] In the picture:

[0034] 100, housing; 101, handle surface; 110, first housing; 111, first connecting portion; 112, first buckling portion; 1121, first sealing connecting plate; 1122, connecting groove; 1123, sealing rib; 113, third buckling portion; 1131, outer step structure; 120, second housing; 121, second connecting portion; 122, second buckling portion; 1221, second sealing connecting plate; 1222, latching protrusion; 1223, third sealing connecting plate; 12231, sealing surface; 12232, stop surface; 123, fourth buckling portion; 1231, inner step structure;

[0035] 200, fastening seal; 210, sealing plate; 211, sealing groove; 220, mating connection part. DETAILED DESCRIPTION

[0036] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0037] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0038] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0039] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are used to refer to positions or locations based on the positions or locations shown in the accompanying drawings. These terms are intended solely to facilitate description and simplify operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0040] Example 1

[0041] This embodiment provides a housing installation structure that can fasten a first housing and a second housing to form a housing, thereby improving the sealing performance of the housing. The structure is simple and easy to install and disassemble.

[0042] Specifically, if Figures 1-4 As shown, the housing mounting structure includes a housing 100 and a fastening seal 200 .

[0043] The housing 100 includes a first housing 110 and a second housing 120 that cooperate with each other. The first housing 110 is provided with a first connecting portion 111, and the second housing 120 is provided with a second connecting portion 121. The fastening seal 200 includes a sealing plate 210 and mating connecting portions 220 disposed on opposite sides of the sealing plate 210. The sealing plate 210 seals the portion where the first housing 110 and the second housing 120 are connected. The two mating connecting portions 220 are respectively connected to the first connecting portion 111 and the second connecting portion 121.

[0044] The first shell 110 and the second shell 120 can be connected by riveting. The fastening seal 200 can be used to fix the first shell 110 and the second shell 120 at locations where rivets are difficult to set, thereby improving the connection strength between the first shell 110 and the second shell 120 at this location, reducing the risk of gaps between the first shell 110 and the second shell 120 at this location, and improving the sealing performance of the shell 100. In addition, the sealing cover 210 is provided at the connection between the first shell 110 and the second shell 120 at this location, which can further improve the sealing performance of the shell 100. The fastening seal 200 cooperates with the shell 100 to fasten and seal the shell 100, resulting in a simple structure and convenient installation and disassembly.

[0045] Optionally, when the housing 100 is used in a circuit breaker product, the first housing 110 and the second housing 120 are connected to form a handle surface 101 for arranging the circuit breaker handle. The sealing plate 210 is provided to seal the connection between the first housing 110 and the second housing 120 on the handle surface 101. Because it is difficult to arrange a rivet structure on the handle surface 101 of a circuit breaker, using this housing mounting structure on the handle surface 101 can improve the sealing performance of the circuit breaker.

[0046] Further, see Figure 1 、 Figure 3 and Figure 4 The first shell 110 includes a first fastening portion 112, and the second shell 120 includes a second fastening portion 122. The second fastening portion 122 is fastened to the first fastening portion 112. A sealing groove 211 is provided on the sealing plate 210. The sealing plate 210 is sealed and fastened to the first fastening portion 112 and the second fastening portion 122 through the sealing groove 211. With this arrangement, the first fastening portion 112 and the second fastening portion 122 are both located in the sealing groove 211, so that the sealing plate 210 has the function of assisting the connecting portion 220 to improve the connection strength between the first shell 110 and the second shell 120, further improving the sealing performance between the first shell 110 and the second shell 120, and the sealing plate 210 has a better sealing effect on the connection between the first shell 110 and the second shell 120.

[0047] Optionally, in this embodiment, the first connection portion 111 and the second connection portion 121 are both slots, and the mating connection portion 220 is an elastic snap, which is snapped into its corresponding slot. The two elastic snaps and the sealing plate 210 form a "U" shape. The connection between the fastening seal 200 and the first shell 110 and the second shell 120 is achieved by snapping, which has a simple structure and is relatively easy to install and disassemble. In addition, the fastening seal 200 is "U"-shaped, and the sealing plate 210 is arranged on the handle surface 101. The two mating connection portions 220 will be placed on two opposite sides of the handle surface 101. Such an arrangement is conducive to improving the aesthetics of the circuit breaker, and the structure is also relatively simple and easy to process.

[0048] Alternatively, as Figure 4-Figure 6 As shown, in one possible embodiment, the first fastening portion 112 includes a first sealing connecting plate 1121 and a connecting groove 1122 provided on the inner side of the first sealing connecting plate 1121. The second fastening portion 122 includes a second sealing connecting plate 1221 and a latching protrusion 1222 provided on the second sealing connecting plate 1221. The latching protrusion 1222 is engaged with the connecting groove 1122, and the second sealing connecting plate 1221 abuts against the first sealing connecting plate 1121. The connection between the first fastening portion 112 and the second fastening portion 122 is achieved through the latching cooperation between the connecting groove 1122 and the latching protrusion 1222. The structure is simple and easy to install and disassemble. In addition, the second sealing connecting plate 1221 abuts against the first sealing connecting plate 1121, which can limit the assembly of the first fastening portion 112 and the second fastening portion 122.

[0049] Optionally, one or more locking protrusions 1222 may be provided, depending on the length of the connecting groove 1122. In this embodiment, two locking protrusions 1222 are provided, and the two locking protrusions 1222 are spaced apart.

[0050] Further, see Figure 4-Figure 6 The second fastening portion 122 also includes a third sealing connecting plate 1223 disposed outside the second sealing connecting plate 1221. The third sealing connecting plate 1223 covers a portion of the first sealing connecting plate 1121 and extends to the side of the first sealing connecting plate 1121 away from the second sealing connecting plate 1221. By providing the third sealing connecting plate 1223 covering the first sealing connecting plate 1121, the gap between the first and second sealing connecting plates 1121, 1221, is further sealed, thereby improving the sealing performance between the first and second housings 110, 120. By extending the third sealing connecting plate 1223 to the side of the first sealing connecting plate 1121 away from the second sealing connecting plate 1221, the aesthetics of the housing 100 are enhanced.

[0051] Alternatively, as Figure 7As shown, in this embodiment, a sealing rib 1123 is provided on a side of the first sealing connecting plate 1121 away from the second sealing connecting plate 1221. A sealing surface 12231 and a stop surface 12232 are connected to each other at the end of the third sealing connecting plate 1223. The sealing surface 12231 is in contact with the outer surface of the sealing rib 1123, and the stop surface 12232 is in contact with the side surface of the sealing rib 1123. The cooperation between the side surface of the sealing rib 1123 and the stop surface 12232 can, on the one hand, reduce the difficulty of external moisture or dust entering the housing 100 through the gap between the third sealing connecting plate 1223 and the first sealing connecting plate 1121, thereby improving the sealing performance of the housing 100. On the other hand, it can also limit the assembly between the first housing 110 and the second housing 120.

[0052] Optionally, the side surfaces of the stop surface 12232 and the sealing rib 1123 can both be inclined surfaces, which can be set according to actual needs and are not specifically limited in this application.

[0053] Optionally, continue with Figure 1 In a possible embodiment, the outer surface of the sealing plate 210 is flush with the outer surface of the third sealing connection plate 1223 . Such a configuration can improve the aesthetics of the housing 100 .

[0054] Optionally, continue with Figure 1 In another possible embodiment, the mating connection portion 220 connected to the first connection portion 111 is flush with the outer surface of the first shell 110, and the mating connection portion 220 connected to the second connection portion 121 is flush with the outer surface of the second shell 120. This arrangement can improve the aesthetics of the shell 100.

[0055] In this embodiment, the outer surface of the sealing plate 210 is flush with the outer surface of the third sealing connecting plate 1223, and the mating connection part 220 connected to the first connection part 111 is flush with the outer surface of the first shell 110, and the mating connection part 220 connected to the second connection part 121 is flush with the outer surface of the second shell 120.

[0056] Further, see Figure 4 The first housing 110 includes a third fastening portion 113, the end of which is provided with an outer step structure 1131. The second housing 120 includes a fourth fastening portion 123, the end of which is provided with an inner step structure 1231. The inner step structure 1231 cooperates with the outer step structure 1131. The cooperation between the inner step structure 1231 and the outer step structure 1131 can further improve the sealing performance between the first housing 110 and the second housing 120.

[0057] In this embodiment, the first snap-fitting portion 112 and the third snap-fitting portion 113 on the first shell 110 are located on two adjacent surfaces of the shell 100 . Similarly, the second snap-fitting portion 122 and the fourth snap-fitting portion 123 on the second shell 120 are located on two adjacent surfaces of the shell 100 .

[0058] Example 2

[0059] This embodiment provides a housing installation structure, which is substantially the same as that of the first embodiment, and is only improved on the basis of the first embodiment. Therefore, only the differences between the two are described here, and the structures that are the same as those of the first embodiment are not repeated here.

[0060] Specifically, if Figures 8-10 As shown, in this embodiment, the first fastening portion 112 is provided with a first connecting portion 111 at one end away from the second fastening portion 122, and the second fastening portion 122 is provided with a second connecting portion 121 at one end away from the first fastening portion 112. The mating connecting portions 220 are provided on opposite side walls of the sealing groove 211, and the mating connecting portions 220 are snap-engaged with the corresponding first connecting portion 111 or second connecting portion 121. With this arrangement, the structure of the fastening seal 200 is relatively simple and easy to manufacture.

[0061] Alternatively, the first connection portion 111 may be a first flange provided on the first buckling portion 112, and the second connection portion 121 may be a second flange provided on the second buckling portion 122. The mating connection portion 220 may be a bayonet provided on the side wall of the sealing groove 211, and the first flange and the second flange are snap-fitted into the corresponding bayonet.

[0062] Of course, the snap-fitting method between the first connection part 111 and the mating connection part 220, and the snap-fitting method between the second connection part 121 and the mating connection part 220 can also be set to other methods according to actual needs, and this application does not make specific limitations.

[0063] Example 3

[0064] This embodiment provides a circuit breaker, including a circuit breaker body and the housing mounting structure provided in the first or second embodiment. The circuit breaker body is disposed in a housing 100 of the housing mounting structure.

[0065] Since the circuit breaker adopts the above-mentioned housing installation structure, the sealing performance is better.

[0066] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. The housing installation structure is characterized in that: include: A housing (100), the housing (100) comprising a first housing (110) and a second housing (120) that cooperate with each other, the first housing (110) being provided with a first connecting portion (111), and the second housing (120) being provided with a second connecting portion (121); The fastening seal (200) comprises a sealing plate (210) and matching connecting portions (220) arranged on opposite sides of the sealing plate (210); the sealing cover of the sealing plate (210) is arranged at the partial connection between the first shell (110) and the second shell (120); the two matching connecting portions (220) are respectively connected to the first connecting portion (111) and the second connecting portion (121).

2. The housing installation structure according to claim 1, wherein: After the first housing (110) and the second housing (120) are connected, a handle surface (101) for arranging a circuit breaker handle is formed, and the sealing cover (210) is provided at a connection between the first housing (110) and the second housing (120) on the handle surface (101).

3. The housing installation structure according to claim 1, wherein: The first shell (110) includes a first buckling portion (112), the second shell (120) includes a second buckling portion (122), the second buckling portion (122) is buckled and connected to the first buckling portion (112), the sealing plate (210) is provided with a sealing groove (211), and the sealing plate (210) is sealed and buckled with the first buckling portion (112) and the second buckling portion (122) through the sealing groove (211).

4. The housing installation structure according to claim 3, characterized in that: The first snap-fitting portion (112) includes a first sealing connecting plate (1121) and a connecting groove (1122) arranged on the inner side of the first sealing connecting plate (1121); the second snap-fitting portion (122) includes a second sealing connecting plate (1221) and a latching protrusion (1222) arranged on the second sealing connecting plate (1221); the latching protrusion (1222) is latched in the connecting groove (1122); and the second sealing connecting plate (1221) abuts against the first sealing connecting plate (1121).

5. The housing installation structure according to claim 4, characterized in that: The second buckling portion (122) also includes a third sealing connecting plate (1223) arranged on the outside of the second sealing connecting plate (1221), and the third sealing connecting plate (1223) covers a portion of the first sealing connecting plate (1121) and extends to the side of the first sealing connecting plate (1121) away from the second sealing connecting plate (1221).

6. The housing installation structure according to claim 5, characterized in that: A sealing rib (1123) is provided on the side of the first sealing connecting plate (1121) away from the second sealing connecting plate (1221), and an end portion of the third sealing connecting plate (1223) is provided with a sealing surface (12231) and a stop surface (12232) that are connected to each other, wherein the sealing surface (12231) is in contact with the outer surface of the sealing rib (1123), and the stop surface (12232) is in contact with the side surface of the sealing rib (1123).

7. The housing installation structure according to claim 5, characterized in that: The outer surface of the sealing plate (210) is flush with the outer surface of the third sealing connecting plate (1223); and / or the mating connecting portion (220) connected to the first connecting portion (111) is flush with the outer surface of the first shell (110), and the mating connecting portion (220) connected to the second connecting portion (121) is flush with the outer surface of the second shell (120).

8. The housing installation structure according to claim 3, wherein: The first connecting portion (111) and the second connecting portion (121) are both slots, the matching connecting portion (220) is an elastic clip, the two elastic clips and the sealing plate (210) form a "U" shape, and the elastic clips are clipped into the corresponding slots; Alternatively, the first connecting portion (111) is provided at one end of the first buckling portion (112) away from the second buckling portion (122), and the second connecting portion (121) is provided at one end of the second buckling portion (122) away from the first buckling portion (112), and the matching connecting portion (220) is provided on the opposite side walls of the sealing groove (211), and the matching connecting portion (220) is snap-connected to the first connecting portion (111) or the second connecting portion (121) corresponding thereto.

9. The housing installation structure according to any one of claims 1 to 8, characterized in that: The first shell (110) includes a third buckling portion (113), the end of which is provided with an outer step structure (1131); the second shell (120) includes a fourth buckling portion (123), the end of which is provided with an inner step structure (1231); the inner step structure (1231) cooperates with the outer step structure (1131).

10. A circuit breaker, characterized in that The invention comprises a circuit breaker body and a housing installation structure according to any one of claims 1 to 9, wherein the circuit breaker body is arranged in a housing (100) of the housing installation structure.

Images