Busbar protection device and busbar connection device

Abstract

The utility model relates to the technical field of electric power fittings, and discloses a busbar protection device and a busbar connecting device.The busbar protection device comprises a shell and a protective cover, the interior of the shell is a cavity, one side of the shell is provided with a first opening, the other side of the shell is provided with a plurality of second openings, the shell is provided with a plurality of installation parts, the installation parts are located at the second openings, and the protective cover is arranged on the shell. According to the utility model, the busbar is arranged in the shell in a penetrating manner, so that an operator can be prevented from touching the exposed and electrified busbar, and the protective cover can shield and protect the connecting part of the busbar and the connecting piece; an operator is prevented from touching the exposed and electrified busbar and the connecting piece, and an insulating piece does not need to be wrapped at the connecting end of the busbar, so that heat dissipation of the busbar is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power accessories, in particular to a busbar protection device and a busbar connection device. Background Art

[0002] A busbar, also known as a busbar row, is a conductive material on power distribution equipment, and its main function is to be used as a conductor. It is usually made of copper or aluminum, and color marks indicating phase sequence are provided on its surface, which are used to connect the main switch in the power control box and the switches in each branch circuit to realize the distribution and transmission of electric energy.

[0003] In the prior art, the busbar is usually directly introduced into the power control box. Since the busbar joint terminals and live conductors are exposed in the power control box, the risk of electric shock to the operator is increased. To ensure electrical safety, an insulating heat shrinkable tube is also used to wrap the connection end of the busbar, but this insulating method is likely to affect the heat dissipation of the busbar. Summary of the Utility Model

[0004] In view of this, the utility model provides a busbar protection device and a busbar connection device to solve the problems of electric shock risk existing in the busbar joint in the prior art and the influence of heat dissipation caused by setting a heat shrinkable tube at the connection end of the busbar.

[0005] In a first aspect, the utility model provides a busbar protection device, which includes a housing and a protective cover. The interior of the housing is a cavity. One side of the housing is provided with a first opening, and the other side of the housing is provided with a plurality of second openings. A plurality of mounting parts are provided on the housing, and the mounting parts are located at the second openings. The mounting parts are suitable for mounting connecting pieces. The busbar is suitable for passing through the first opening and the second openings to be connected with the connecting pieces. The protective cover is detachably mounted on the mounting parts.

[0006] Beneficial effects: By passing the busbar through the housing, the utility model can prevent the operator from touching the exposed and live busbar. The protective cover can cover and protect the connection part of the busbar and the connecting piece, preventing the operator from touching the exposed and live busbar and the connecting piece. At the same time, there is no need to wrap an insulating part at the connection end of the busbar, which is conducive to the heat dissipation of the busbar.

[0007] In an optional embodiment, a plurality of limiting parts are provided inside the housing, and an installation channel is formed between the limiting parts. The installation channel is suitable for limiting and installing the busbar.

[0008] Beneficial effects: By providing a plurality of limiting parts inside the housing, when installing the busbar, the busbar inside the housing can be limited and installed on the limiting parts, improving the stability of the busbar after installation.

[0009] In an optional embodiment, the heights of the plurality of mounting parts increase progressively.

[0010] Beneficial effects: In the present utility model, the heights of multiple mounting parts are incrementally arranged. When multiple busbars are respectively installed in corresponding housings, the mounting parts with different heights can ensure the creepage distance between the busbars, thereby improving safety.

[0011] In an alternative embodiment, heat dissipation holes are provided on the housing and / or the shield.

[0012] Beneficial effects: In the present utility model, by providing heat dissipation holes on the housing and / or the shield, it is convenient for the air circulation between the inside of the housing and the external environment, thereby dissipating heat from the busbar.

[0013] In an alternative embodiment, a clamping protrusion or a clamping groove is provided on the mounting part, and a corresponding clamping groove or a clamping protrusion is provided on the shield, and the clamping protrusion and the clamping groove are detachably clamped.

[0014] Beneficial effects: In the present utility model, by detachably connecting the shield to the mounting part, it is convenient for the operator to install and maintain the busbar and the connecting piece.

[0015] In an alternative embodiment, the first opening is provided at the bottom of the housing, and the second opening is provided at the top of the housing.

[0016] Beneficial effects: In the present utility model, by inserting the busbar through the first opening at the bottom of the housing and passing it out through the second opening, the busbar body can be located inside the housing, avoiding the busbar being exposed outside, and at the same time, a certain creepage distance can be maintained between the busbars, thereby improving the safety performance.

[0017] In a second aspect, the present utility model further provides a busbar connection device, including the above-mentioned busbar protection device, multiple connecting pieces and multiple busbars. The multiple housings are arranged side by side, the connecting pieces are arranged in the mounting parts, and the busbars pass through the first opening and the second opening to be connected to the connecting pieces.

[0018] In an alternative embodiment, the busbar includes a first busbar, a second busbar, a third busbar and a fourth busbar, and the first busbar, the second busbar, the third busbar and the fourth busbar are arranged side by side.

[0019] In an alternative embodiment, the positions of the first busbar, the second busbar, the third busbar and the fourth busbar on the mounting part increase in height.

[0020] Beneficial effects: In the present utility model, by incrementally arranging the heights of the busbars on the mounting part, the creepage distance between the busbars can be increased in both the horizontal and vertical directions, thereby improving the safety of the busbar connection device.

[0021] In an alternative embodiment, a limiting groove is provided on the side of the connecting piece away from the mounting part, and the busbar is installed in the limiting groove. Description of the Drawings

[0022] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0023] Figure 1 Structural schematic diagram of a busbar protection device according to an embodiment of the present invention;

[0024] Figure 2 Bottom perspective structural schematic diagram of a busbar protection device according to an embodiment of the present invention;

[0025] Figure 3 Structural schematic diagram of a busbar protection device according to an embodiment of the present invention with the protective cover removed;

[0026] Figure 4 Structural schematic diagram of the protective cover of a busbar protection device according to an embodiment of the present invention;

[0027] Figure 5 Structural schematic diagram of the interior of the housing of a busbar protection device according to an embodiment of the present invention;

[0028] Figure 6 Structural schematic diagram of a busbar connection device according to an embodiment of the present invention;

[0029] Figure 7 Another perspective structural schematic diagram of a busbar connection device according to an embodiment of the present invention;

[0030] Figure 8 Bottom perspective structural schematic diagram of a busbar connection device according to an embodiment of the present invention;

[0031] Figure 9 Structural schematic diagram of a busbar connection device according to an embodiment of the present invention with the protective cover removed;

[0032] Figure 10 Another perspective structural schematic diagram of a busbar connection device according to an embodiment of the present invention with the protective cover removed.

[0033] Explanation of reference numerals:

[0034] 1. Housing; 101. First opening; 102. Second opening; 103. Installation part; 104. Limiting part; 105. Clamping projection;

[0035] 2. Protective cover; 201. Heat dissipation holes; 202. Card slots;

[0036] 3. Connector; 301. Limit groove

[0037] 4. Busbar; 401. First busbar; 402. Second busbar; 403. Third busbar; 404. Fourth busbar Specific embodiments

[0038] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model

[0039] The following is combined with Figures 1 to 10 to describe the embodiments of the present utility model

[0040] According to an embodiment of the present utility model, on the one hand, as Figures 1 to 5 shown, a busbar protection device is provided, including a housing 1 and a protective cover 2. The interior of the housing 1 is a cavity. One side of the housing 1 is provided with a first opening 101, and the other side of the housing 1 is provided with a plurality of second openings 102. The housing 1 is provided with a plurality of mounting parts 103, and the mounting parts 103 are located at the second openings 102. The mounting parts 103 are adapted to mount the connector 3. The busbar 4 is adapted to pass through the first opening 101 and the second opening 102 to be connected to the connector 3. The protective cover 2 is detachably mounted on the mounting parts 103

[0041] Specifically, in this embodiment, the housing 1 has a stepped structure. The bottom of the housing 1 is a plane. A plurality of mounting parts 103 are arranged on the stepped surface of the housing 1. The first opening 101 is arranged at the bottom of the housing 1. A plurality of second openings 102 are arranged at the top of the housing 1, and the positions of the plurality of second openings 102 are respectively located on each stepped platform. The busbar 4 penetrates into the interior of the housing 1 through the first opening 101 at the bottom and penetrates out through the second opening 102 to be fixedly connected to the connector 3

[0042] In this embodiment, the housing 1 is assembled by corresponding two symmetrical half-shells

[0043] In this embodiment, the interior of the protective cover 2 is a cavity. The size of the protective cover 2 matches the size of the mounting parts 103 on the housing 1. The protective cover 2 is detachably mounted on the mounting parts 103 to protect the busbar 4 at the mounting parts 103 and prevent the operator from accidentally touching the busbar 4 on the mounting parts 103. When the protective cover 2 is mounted on the mounting parts 103, the side wall of the protective cover 2 is in an open shape to facilitate the threading and installation of the connector 3

[0044] In the present utility model, by passing the busbar 4 through the housing 1, it is possible to prevent the operator from touching the exposed and energized busbar 4. The shield 2 can cover and protect the connection part between the busbar 4 and the connector 3, preventing the operator from touching the exposed and energized busbar 4 and the connector 3. At the same time, there is no need to wrap insulating parts at the connection end of the busbar 4, which is conducive to the heat dissipation of the busbar 4.

[0045] In one embodiment, as Figure 5 shown, a plurality of limiting parts 104 are provided in the housing 1, and an installation channel is formed between the limiting parts 104, and the installation channel is suitable for limiting and installing the busbar 4.

[0046] Specifically, in this embodiment, a plurality of limiting parts 104 are provided in the housing 1, and an installation channel from the first opening 101 to the second opening 102 is formed in the housing 1 between the limiting parts 104. When the busbar 4 is installed in the housing 1, the limiting parts 104 can limit the busbar 4 to make it more stable in the housing 1.

[0047] In the present utility model, by providing a plurality of limiting parts 104 in the housing 1, when installing the busbar 4, the busbar 4 in the housing 1 can be limited and installed on the limiting parts 104, improving the stability of the busbar 4 after installation.

[0048] In one embodiment, as Figures 1 to 5 shown, the heights of the plurality of mounting parts 103 increase progressively.

[0049] Specifically, in this embodiment, the heights of the plurality of mounting parts 103 are set to increase progressively on the stepped surface above the housing 1, and the connection ends for connecting the busbar 4 and the connector 3 are arranged at different positions, thereby increasing the creepage distance of the connection ends of the busbar 4 on adjacent busbar protection devices.

[0050] In the present utility model, the heights of the plurality of mounting parts 103 are set to increase progressively. When a plurality of busbars 4 are respectively installed in the corresponding housings 1, the mounting parts 103 with different heights can ensure the creepage distance between the busbars 4, improving the safety.

[0051] In one embodiment, as Figures 1 to 5 shown, heat dissipation holes 201 are provided on the housing 1 and / or the shield 2.

[0052] Specifically, in this embodiment, heat dissipation holes 201 are provided at both the bottom and the side of the housing 1, and heat dissipation holes 201 are provided at both the top and the side of the shield 2. When the shield 2 is installed on the housing 1, the heat dissipation holes 201 can increase the air permeability between the housing 1 and the shield 2, facilitating the dissipation of the heat generated on the busbar 4 to the external environment.

[0053] In the present utility model, by providing heat dissipation holes 201 on the housing 1 and / or the shield 2, it is convenient for the air circulation between the inside of the housing 1 and the external environment, thereby dissipating heat from the busbar 4.

[0054] In one embodiment, as Figures 2 to 5 shown, the mounting portion 103 is provided with a clamping projection 105 or a clamping groove 202, and the corresponding position on the shield 2 is provided with a clamping groove 202 or a clamping projection 105, and the clamping projection 105 and the clamping groove 202 are detachably clamped.

[0055] Specifically, in this embodiment, a clamping projection 105 is provided on the upper plane of the mounting portion 103, a clamping groove 202 is provided on the side plane of the mounting portion 103, a clamping groove 202 is provided at the lower side position of the corresponding shield 2, a clamping projection 105 is provided at the upper end of the shield 2, and the clamping projection 105 is detachably clamped in the clamping groove 202, so as to ensure the firm installation of the shield 2 and the housing 1. When the shield 2 needs to be disassembled, the clamping projection 105 can be taken out of the clamping groove 202 to remove the shield 2.

[0056] By detachably connecting the shield 2 and the mounting portion 103, the present utility model facilitates the installation and maintenance of the bus bar 4 and the connecting member 3 by the operator.

[0057] In one embodiment, as Figure 2 , Figure 3 and Figure 5 shown, the first opening 101 is provided at the bottom of the housing 1, and the second opening 102 is provided at the top of the housing 1.

[0058] Specifically, in this embodiment, the first opening 101 is provided at the middle position of the bottom of the housing 1, the housing 1 is provided with four stepped portions, and the four second openings 102 are respectively provided at the tops of the stepped portions, and a corresponding installation channel is provided between the first opening 101 and the second opening 102.

[0059] By passing the bus bar 4 through the first opening 101 at the bottom of the housing 1 and passing out through the second opening 102, the present utility model can make the body of the bus bar 4 located inside the housing 1, avoid the bus bar 4 being exposed outside, and at the same time can keep a certain creepage distance between the bus bars 4, improving the safety performance.

[0060] According to an embodiment of the present utility model, on the other hand, as Figures 6 to 10 shown, a bus bar connection device is further provided, including the above-mentioned bus bar protection device, a plurality of connecting members 3 and a plurality of bus bars 4. The plurality of housings 1 are arranged in parallel, the connecting members 3 are arranged in the mounting portion 103, and the bus bars 4 pass through the first opening 101 and the second opening 102 to be connected to the connecting members 3.

[0061] Specifically, in this embodiment, the bus bar connection device is suitable for being installed in an electrical control cabinet. In this embodiment, four bus bar protection devices arranged in parallel are provided, the four connecting members 3 are respectively arranged corresponding to the mounting portion 103, the mounting heights of the four connecting members 3 are arranged in increasing order, and one ends of the four bus bars 4 are respectively passed through the first opening 101 and arranged inside the housing 1 and are correspondingly installed with the connecting members 3.

[0062] In the present utility model, by respectively passing four busbars 4 through corresponding housings 1, it is possible to prevent operators from touching the exposed and energized busbars 4 in the electrical control cabinet. The protective cover 2 can cover and protect the connection parts of the busbars 4 and the connectors 3, preventing operators from touching the exposed and energized busbars 4 and connectors 3. At the same time, there is no need to wrap insulating parts at the connection ends of the busbars 4, which is conducive to the heat dissipation of the busbars 4. Adjacent busbar protection devices can increase the creepage distance between adjacent busbars 4, ensuring the electrical safety of the busbars 4.

[0063] In one embodiment, as Figure 7 , Figure 8 and Figure 10 shown, the busbar 4 includes a first busbar 401, a second busbar 402, a third busbar 403, and a fourth busbar 404, and the first busbar 401, the second busbar 402, the third busbar 403, and the fourth busbar 404 are arranged in parallel.

[0064] Specifically, in this embodiment, the first busbar 401 is the A phase in the three-phase circuit, the second busbar 402 is the B phase, the third busbar 403 is the C phase, and the fourth busbar 404 is the N phase. Among them, the A phase uses a yellow busbar 4, the B phase uses a green busbar 4, the C phase uses a red busbar 4, and the N phase uses a blue busbar 4.

[0065] In one embodiment, as Figure 9 and Figure 10 shown, the heights of the first busbar 401, the second busbar 402, the third busbar 403, and the fourth busbar 404 at the installation part 103 increase.

[0066] Specifically, in this embodiment, the first busbar 401 is located on the first step of the first busbar protection device, the second busbar 402 is located on the second step of the second busbar protection device, the third busbar 403 is located on the third step of the third busbar protection device, and the fourth busbar 404 is located on the fourth step of the fourth busbar protection device.

[0067] By increasing the heights of the busbars 4 at the installation part 103 in the present utility model, the creepage distance between the busbars 4 can be increased in both the horizontal and vertical directions, thereby improving the safety of the busbar connection device.

[0068] In one embodiment, as Figure 5 , Figure 6 and Figure 9 shown, a limiting groove 301 is provided on the side of the connector 3 away from the installation part 103, and the busbar 4 is installed in the limiting groove 301.

[0069] Specifically, in this embodiment, the connecting member 3 is in a long strip shape. The connecting member 3 is arranged on the mounting portions 103 at the same height of adjacent busbar protection devices. The first busbar 401, the second busbar 402, the third busbar 403, and the fourth busbar 404 are respectively connected to the corresponding connecting members 3. A limiting groove 301 is provided on the side of the connecting member 3. Mounting holes are provided at the ends of the first busbar 401, the second busbar 402, the third busbar 403, and the fourth busbar 404. The head of the screw is limited and installed in the limiting groove 301. The tail of the screw is connected to the mounting hole of the busbar 4, and a nut is fastened on the screw to firmly install the busbar 4.

[0070] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations fall within the scope defined by the appended claims.

Claims

1. A busbar protection device, characterized in that: include: A shell (1), the interior of the shell (1) is a cavity, one side of the shell (1) is provided with a first opening (101), the other side of the shell (1) is provided with a plurality of second openings (102), the shell (1) is provided with a plurality of mounting portions (103), the mounting portions (103) are located at the second openings (102), the mounting portions (103) are suitable for mounting a connector (3), and the busbar (4) is suitable for passing through the first opening (101) and the second opening (102) to be connected to the connector (3); A protective cover (2), wherein the protective cover (2) is detachably mounted on the mounting portion (103).

2. The busbar protection device according to claim 1, characterized in that: A plurality of limiting portions (104) are provided in the housing (1), and mounting channels are formed between the limiting portions (104), wherein the mounting channels are suitable for limiting the mounting of the busbar (4).

3. The busbar protection device according to claim 1 or 2, characterized in that: The heights of the plurality of mounting portions (103) are increased gradually.

4. The busbar protection device according to claim 1, characterized in that: The housing (1) and / or the shield (2) are provided with heat dissipation holes (201).

5. The busbar protection device according to claim 1, characterized in that: The mounting portion (103) is provided with a locking protrusion (105) or a locking groove (202), and the shield (2) is correspondingly provided with the locking groove (202) or the locking protrusion (105), and the locking protrusion (105) and the locking groove (202) are detachably locked.

6. The busbar protection device according to claim 1, characterized in that: The first opening (101) is arranged at the bottom of the shell (1), and the second opening (102) is arranged at the top of the shell (1).

7. A busbar connection device, characterized in that: include: A busbar protection device according to any one of claims 1 to 6, wherein a plurality of said shells (1) are arranged in parallel; A plurality of connecting members (3), wherein the connecting members (3) are arranged in the mounting portion (103); A plurality of bus bars (4), wherein the bus bars (4) pass through the first opening (101) and the second opening (102) to be connected to the connecting member (3).

8. The busbar connection device according to claim 7, characterized in that: The busbar (4) comprises: The first busbar (401); A second busbar (402); The third busbar (403); A fourth busbar (404), wherein the first busbar (401), the second busbar (402), the third busbar (403) and the fourth busbar (404) are arranged in parallel.

9. The busbar connection device according to claim 8, characterized in that: The first busbar (401), the second busbar (402), the third busbar (403) and the fourth busbar (404) are located at increasing heights on the mounting portion (103).

10. The busbar connection device according to any one of claims 7 to 9, characterized in that: A limiting groove (301) is provided on a side of the connecting member (3) away from the mounting portion (103), and the busbar (4) is mounted in the limiting groove (301).

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