Rubber-coated copper bar structure and optical storage equipment

Abstract

The utility model discloses a rubber-coated copper bar structure and optical storage equipment. The rubber-coated copper bar structure comprises a plurality of copper bars, a plastic main frame body, a first control panel and a second control panel, wherein the first control panel and the second control panel are arranged in parallel up and down; each copper bar is 7-shaped and integrally formed, and comprises a middle 7-shaped limited copper bar which is wrapped by the plastic main frame body, and a first free cantilever and a second free cantilever which are arranged at two ends and are exposed out of the plastic main frame body; the first free cantilever is detachably mounted on a corresponding terminal seat on the upper side of the first control panel, and the second free cantilever is welded with the second control panel; and a plurality of current sensors are buckled on one side, facing the terminal seat, of the plastic main frame body, and the plurality of current sensors are sleeved on the corresponding first free cantilevers through windows of the current sensors. The beneficial effects of the utility model lie in that the connection total length can be reduced, the shape is controllable, wire arrangement is not needed, the production efficiency is improved, the safety and the space utilization rate of a product on the upper side of the first control panel are increased, and the appearance size of the product is reduced.

Description

Technical Field

[0001] The utility model relates to the field of photovoltaic and energy storage, in particular to a rubber-coated copper busbar structure and a photovoltaic storage device. Background Art

[0002] In the prior art, in order to meet the requirements of the external dimensions of optical storage equipment, the electrical functions are usually divided into multiple PCBAs for stacking and assembly. When connecting the boards, current sensors are added to achieve the function of frequency stabilization or monitoring, or to achieve the purpose of stability and intelligent detection. Usually, the connection method between control boards is to rivet terminals at both ends of the soft cable, and then fix them to the connection position of the two control boards by fasteners or welding after putting on heat shrink tubing. The cable passes through the current sensor and is fixed by knotting or adding a cable tie.

[0003] In the above connection method, the cable connection not only affects the internal cleanliness of the product, but also causes the cable to become tangled and messy after passing through the current sensor. It is necessary to find a place to fix the cable and the current sensor. This will not only cause additional process steps in the production and assembly of the optical storage equipment and increase production costs, but also because a certain operating space is required for wire management and fixing, the size of the product cannot be made smaller, and the purpose of refinement is not achieved. Utility Model Content

[0004] The purpose of the utility model is to provide a rubber-coated copper busbar structure and a light storage device in order to solve the above problems.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] A rubber-coated copper busbar structure comprises a plurality of copper busbars, a plastic main frame, and a first control board and a second control board arranged in parallel up and down; each of the copper busbars is in the shape of a "7" and is integrally formed, and each of the copper busbars comprises a restricted copper busbar in the shape of a "7" in the middle and covered by the plastic main frame, and a first free cantilever and a second free cantilever at both ends exposed outside the plastic main frame; a plurality of terminal seats are arranged on the upper side of the first control board; the first free cantilever can be detachably mounted on the corresponding terminal seat, and the second free cantilever is welded to the second control board; a plurality of current sensors are buckled and mounted on one side of the plastic main frame facing the terminal seat, and the plurality of current sensors are mounted on the corresponding first free cantilever through their windows.

[0007] Furthermore, a snap-on group is integrally provided on one side of the plastic main frame facing the terminal seat, and the current sensor is installed in the snap-on group. The snap-on group includes a plurality of inner snaps, a plurality of outer snaps and a plurality of support walls. The inner snaps pass through the window to snap on the inner side of the current sensor, the outer snaps are used to snap on the outer side of the current sensor, and the support walls are used to support the outer side of the current sensor.

[0008] Furthermore, the first free cantilever is parallel to the first control plate, and the second free cantilever is perpendicular to the second control plate.

[0009] Furthermore, the second control board is provided with a plurality of copper bar welding holes, and the bottom end of the second free cantilever is welded to the copper bar welding holes.

[0010] Furthermore, matching fastening holes are provided on the terminal seat and the first free cantilever, and fasteners are installed in the fastening holes.

[0011] Furthermore, a plurality of positioning structures are provided at the bottom of the plastic main frame, a plurality of alignment holes matching the positioning structures are opened on the second control board, and the positioning structures are inserted into the alignment holes.

[0012] Furthermore, there are three support walls, one inner buckle and two outer buckles.

[0013] The utility model also discloses a light storage device, comprising the aforementioned rubber-coated copper busbar structure, wherein the rubber-coated copper busbar structure is arranged in a housing of the light storage device.

[0014] Furthermore, the optical storage device housing is composed of a lower shell and an upper cover shell detachably connected to the top of the lower shell.

[0015] Furthermore, the optical storage device also includes a radiator, which is installed at the lower end of the lower shell.

[0016] The beneficial effects of the utility model are:

[0017] 1. Use copper busbars to replace cables. The copper busbars can be infinitely close to the effective length, which can reduce the total connection length and reduce the cost of the product;

[0018] 2. The control panel is connected and fixed by the copper busbar, the shape is controllable, no need for wire management, and the cable connection is avoided. The shape of the cable connection is different and the wire binding is ugly. The connection of the copper busbar not only reduces the wire management process, but also keeps the interior of the product clean and tidy, making the interior of the product simple and generous;

[0019] 3. The integrated plastic-coated copper bar made of copper bar and plastic can integrate two or more copper bars into one material, which is convenient for production, transportation and installation of copper bars. It physically solves the problem of wrong installation during production, improves production efficiency and increases safety;

[0020] 4. The positioning structure positions the copper bar on the second control board. During the tinning process, it avoids the use of straightening tools, improves the efficiency of plug-in and reduces the welding process, which is beneficial to saving the production cost of the optical storage equipment and improving the production efficiency of the optical storage equipment;

[0021] 5. Connect the first and second control boards through the copper busbar, avoid increasing the safety space at the location of the copper busbar with rubber, save product space and increase the flexibility of stacking components, effectively control the size of the entire product, and make the product orderly;

[0022] 6. The current sensor is mounted on the copper busbar, which is easy to disassemble and avoids the multi-part method of fasteners. It is also easier to install and disassemble. It also solves the problem of the cable sleeve current sensor increasing the invalid length for knotting, and also solves the problem of the current sensor swing interfering with other components, thereby improving the space utilization rate of the product. Under the same function, it saves the internal space of the product, reduces the product's external dimensions, improves the product's adaptability, and meets the current miniaturization development direction of optical storage equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a structural diagram of a light storage device of the utility model;

[0024] Figure 2 This is a schematic diagram of the structure of a rubber-coated copper busbar of the utility model;

[0025] Figure 3 This is an exploded view of a rubber-coated copper busbar structure of the utility model;

[0026] Figure 4 This is a cross-sectional view of a rubber-coated copper busbar structure of the utility model;

[0027] Figure 5 This is a schematic diagram of a rubber-coated copper busbar of the utility model;

[0028] Figure 6 This is a structural diagram of the installation of a rubber-coated copper busbar and a second control board of the utility model;

[0029] Figure 7 This is a structural diagram of the installation of a rubber-coated copper busbar and a first control board of the utility model.

[0030] The following are the descriptions of the reference numerals:

[0031] 100 Optical storage equipment 301 gap 412 Buckle set 101 Optical storage equipment housing 310 Terminal Block 413 Internal buckle 110 Upper cover 320 fastener 414 External buckle 120 Lower shell 400 Rubber coated copper busbar 415 Support wall 130 heat sink 401 First free cantilever 420 Copper busbar 200 Second control panel 402 Second free cantilever 500 Current Sensors 210 Copper busbar welding hole position 403 Limited copper busbar 501 window 220 Alignment hole 410 Plastic main frame 502 Inside the current sensor 300 First control panel 411 Positioning structure 503 External side of current sensor DETAILED DESCRIPTION

[0032] The utility model is further described below in conjunction with the accompanying drawings:

[0033] like Figure 2 - Figure 7 As shown, a rubber-coated copper busbar structure includes a plurality of copper busbars 420, a plastic main frame 410, a first control board 300 and a second control board 200; the first control board 300 and the second control board 200 are arranged in parallel up and down, specifically, the first control board 300 is arranged horizontally, the second control board 200 is arranged horizontally, the first control board 300 is located above the second control board 200, and the two are parallel to each other.

[0034] In one embodiment, each copper bar 420 is in the shape of a "7", each copper bar 420 is integrally formed, and each copper bar 420 includes a restricted copper bar 403 in the middle and a first free cantilever 401 and a second free cantilever 402 at both ends; the restricted copper bar 403 is covered by the plastic main frame 410 and is also in the shape of a "7"; the first free cantilever 401 and the second free cantilever 402 are exposed outside the plastic main frame 410; a plurality of terminal seats 310 are provided on the upper side of the first control board 300, and the first free cantilever 401 can be detachably installed on the corresponding terminal seat 310, The second free cantilever 402 is welded to the second control board 200; a plurality of current sensors 500 are mounted on one side of the plastic main frame 410 facing the terminal seat 310, and are detachably mounted; a plurality of current sensors 500 are mounted on the corresponding first free cantilever 401, which is equivalent to being mounted on the corresponding copper busbar 420, and the current sensor 500 is used to test the current of the copper busbar 420 on which it is mounted; the current sensor 500 has a window 501, and specifically, the current sensor 500 is mounted on the corresponding first free cantilever 401 through its window 501.

[0035] In one embodiment, the second control panel 200 is disposed below the plastic main frame 410 , and the first control panel 300 is disposed on the left side of the plastic main frame 410 . In one embodiment, the first control panel 300 is provided with a notch 301 so that the lower portion of the plastic main frame 410 passes through the notch 301 .

[0036] In one embodiment, the copper busbar 420 can be obtained by cold processing or hot processing a copper plate into a corresponding structure and then undergoing a series of treatments; the rubber-coated copper busbar 400 includes the copper busbar 420 and a plastic main frame 410, and the rubber-coated copper busbar 400 can be obtained by placing one or more copper busbars 420 with the same or different structures into a plastic mold and injection molding them together with the plastic main frame 410, so that the copper busbar 420 and the plastic main frame 410 can be combined into one part, reducing the number and types of materials, improving the operating efficiency of the supply chain, and indirectly reducing production costs.

[0037] In other embodiments, the copper busbar 420 can also be set to a Z-shape or other shape, and the installation positions of the second control board 200 and the first control board 300 can be adaptively set; or, the shape of the copper busbar 420 can be adaptively designed according to the installation positions of the second control board 200 and the first control board 300.

[0038] like Figure 2 - Figure 7 As shown, the utility model also discloses the following more optimized specific structures:

[0039] In one embodiment, a snap-on group 412 is integrally provided on one side of the plastic main frame 410 facing the terminal seat 310, and the current sensor 500 is installed in the snap-on group 412; each snap-on group 412 includes a plurality of inner snaps 413, a plurality of outer snaps 414 and a plurality of support walls 415, the inner snaps 413 pass through the window 501 to snap on the inner side 502 of the current sensor, the outer snaps 414 are used to snap on the outer side 503 of the current sensor, and the support walls 415 are used to support the current sensor 500.

[0040] In one embodiment, the support wall 415 matches the outer shape of the current sensor 500. For example, when the current sensor 500 is annular, the support wall 415 is an arc-shaped support wall; when the current sensor 500 is in the shape of a U, the support wall 415 is an I-shaped support wall; and so on.

[0041] It can be understood that the buckle group 412 can be set according to the number of current sensors 500; in one embodiment, the number of buckle groups 412 is equal to the number of current sensors 500; in another embodiment, the number of buckle groups 412 is greater than the number of current sensors 500. This is a redundant design. When more current sensors 500 are needed to work, the added current sensors 500 only need to be buckled (snapped) and installed in the buckle group 412.

[0042] In one embodiment, there are three support walls 415 in each buckle group 412, which are respectively located on the left side, right side and bottom side of the current sensor 500; in another embodiment, there is one support wall 415 in the buckle group 412, which is located on the bottom side of the current sensor 500 and is used to support the current sensor 500.

[0043] In one embodiment, each buckle group 412 includes one inner buckle 413 and two outer buckles 414, which are arranged in an isosceles triangle, with the inner buckle 413 centered at the top and the outer buckles 414 located at the bottom on the left and right sides of the inner buckle 413. The distances from the inner buckle 413 to the two outer buckles 414 are the same. Such a structure can firmly fasten the current sensor 500.

[0044] In one embodiment, the inner snap 413 , the outer snap 414 , and the support wall 415 are arranged at intervals. For example, the inner snap 413 , the support wall 415 , the outer snap 414 , and the support wall 415 are arranged at intervals in sequence along the contour of the current sensor 500 .

[0045] In one embodiment, the first free cantilever 401 is parallel or approximately parallel to the first control board 300 ; the second free cantilever 402 is perpendicular or approximately perpendicular to the second control board 200 .

[0046] In one embodiment, a plurality of copper bar welding holes 210 are provided on the second control board 200 , and the bottom end of the second free cantilever 402 is welded into the copper bar welding hole 210 .

[0047] In one embodiment, the terminal seat 310 and the first free cantilever 401 are provided with matching fastening holes, and a fastener 320 is installed in the fastening hole. In this embodiment, the fastener can be a fastening screw, which is convenient for disassembly and assembly. The fastener 320 passes through the first free cantilever 401 to fasten the copper bus 420 to the terminal seat 310 of the first control board 300. This fastening is a positive fastening (fastening from top to bottom), which can meet the fastening process requirements without additional reserved space, and improves the refinement of component arrangement and size; the first free cantilever 401 and the second free cantilever 402 of the copper bus 420 are not coated with rubber, and the toughness and softness of the copper bus can be used to meet the difference in the connection position of the second control board 200 and the first control board 300 and the manufacturing tolerance of the copper bus, avoiding the problems caused by the hard connection of the second control board 200 and the first control board 300, making the equipment including the rubber-coated copper bus structure neater, simpler and more portable.

[0048] In one embodiment, a plurality of positioning structures 411 are provided on the plastic main frame 410. The positioning structures 411 are a kind of positioning columns or jack buckles. The plurality of positioning structures 411 are arranged in an asymmetrical distribution. The second control board 200 is provided with a plurality of alignment holes 220 matching the positioning structures 411. The positioning structures 411 are inserted into the alignment holes 220 to form a guide structure for installing the second control board 200 and the rubber-coated copper busbar 400. The guide structure can make the rubber-coated copper busbar 400 with a plurality of copper busbars 420 blindly inserted into the copper busbar welding hole 210 of the second control board 200 at one time, avoiding the repeated work of positioning and punching for each connection position of the cable connection, reducing the production difficulty, improving the installation efficiency, and reducing the labor cost of installation. The guide structure can also stabilize the rubber-coated copper busbar 400 before welding to prevent the rubber-coated copper busbar 400 from falling out when the second control board 200 is moved. There is no need to add a straightening process in automatic welding, which improves production efficiency and reduces production costs. It avoids the need for a terminal for each cable connected to the cable terminal, and each cable requires a fastener to fix it, which reduces the number of parts, saves materials and production costs, and makes the equipment including the copper busbar rubber-coated structure simple and exquisite.

[0049] In one embodiment, after the second free cantilever 402 is welded to the second control board 200, the current sensor 500 is mounted on the first free cantilever 401 of the copper bus 420 that needs the overcurrent sensor. Alternatively, the current sensor 500 may be mounted on the first free cantilever 401 first, and then the second free cantilever 402 is welded to the second control board 200. Specifically, as follows:

[0050] The current sensor 500 is fastened by the buckle group 412 on the plastic main frame 410. The buckle group 412 can be three buckle positions (for example, one inner buckle 413 and two outer buckles 414) or multiple buckle positions, which limit the position of the current sensor 500 in the X, Y, and Z directions. The installation and removal of the current sensor 500 are completed by the deformation of the buckle group 412, and multiple installation or removal can be performed. The buckle group 412 can be formed at one time by a plastic mold and an injection molding process to achieve the purpose of fixing the current sensor 500 without adding fastening parts, thereby reducing the material cost, personnel cost, rework and maintenance cost of the optical storage device 100. The simple installation method also saves the internal space of the optical storage device 100 for installing or fixing the current sensor 500, reduces the invalid space of the optical storage device 100, and indirectly controls the external dimensions of the optical storage device 100, so that the optical storage device 100 achieves the effect of small size, high power and high density.

[0051] The rubber-coated copper busbar structure of the utility model has at least the following advantages:

[0052] Firstly, since the first free cantilever 401 and the second free cantilever 402 are reserved and the two are not coated with rubber, when the rubber-coated copper busbar 400 is connected to the second control board 200 and the first control board 300, even if there is a position difference, the first free cantilever 401 and the second free cantilever 402 at both ends can be deformed first, so as to avoid the inelastic deformation of the intermediate plastic main frame 410 and the restricted copper busbar 403 coated thereby, and the corresponding fixed positions on the second control board 200 and the first control board 300 (i.e., the copper busbar welding hole 210 and the terminal seat 310) from being subjected to force, thereby meeting the reliability requirements of the rubber-coated copper busbar structure for long-term use.

[0053] Secondly, since the current sensor can be detachably installed and fixed by snapping (snapping), there is no need to perform injection molding or plastic sealing on the periphery of the current sensor, thus avoiding irreversible magnetic weakening of the current sensor due to high temperature and ensuring its performance consistency. Moreover, this method can be assembled on demand through addition and subtraction, which is convenient, fast and highly adaptable.

[0054] like Figure 1 As shown, the utility model further discloses a light storage device 100 , comprising the aforementioned rubber-coated copper busbar structure, which is arranged in a housing 101 of the light storage device.

[0055] In one embodiment, the photovoltaic storage device may be a photovoltaic inverter, a distribution box, a switch box, or the like.

[0056] In one embodiment, the optical storage device housing 101 includes a lower shell 120 and an upper cover shell 110 detachably connected to the top of the lower shell 120; in other embodiments, the optical storage device also includes a heat sink 130, and the heat sink 130 is installed on the lower shell 120; in one embodiment, the heat sink 130 is installed at the lower end of the lower shell 120, specifically, the heat sink 130 can be fastened to the lower end of the lower shell 120, or the heat sink 130 and the lower end of the lower shell 120 are made into one piece through an integrated molding technology, and the lower shell 120 and the upper cover shell 110 plus a sealing strip form a sealed cavity, and all devices with electrical functions are placed therein, thereby improving the structural stability and reliability of the optical storage device 100.

[0057] Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments. The above-mentioned embodiments and the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements shall fall within the scope of the present invention to be protected.

Claims

1. A rubber-coated copper busbar structure, comprising a plurality of copper busbars, characterized in that: It also includes a plastic main frame, and a first control board and a second control board arranged in parallel up and down; each of the copper bars is in the shape of a "7" and is integrally formed, and each of the copper bars includes a restricted copper bar in the shape of a "7" in the middle that is covered by the plastic main frame, and a first free cantilever and a second free cantilever at both ends that are exposed outside the plastic main frame; a plurality of terminal seats are arranged on the upper side of the first control board; the first free cantilever can be detachably installed on the corresponding terminal seat, and the second free cantilever is welded to the second control board; a plurality of current sensors are buckled and installed on one side of the plastic main frame facing the terminal seat, and the plurality of current sensors are mounted on the corresponding first free cantilever through their windows.

2. The rubber-coated copper busbar structure according to claim 1, characterized in that: A snap-on group is integrally provided on one side of the plastic main frame facing the terminal seat, and the current sensor is installed in the snap-on group. The snap-on group includes a plurality of inner snaps, a plurality of outer snaps and a plurality of support walls. The inner snaps pass through the window to snap on the inner side of the current sensor, the outer snaps are used to snap on the outer side of the current sensor, and the support walls are used to support the outer side of the current sensor.

3. The rubber-coated copper busbar structure according to claim 1, characterized in that: The first free cantilever is parallel to the first control plate, and the second free cantilever is perpendicular to the second control plate.

4. The rubber-coated copper busbar structure according to claim 1, characterized in that: The second control board is provided with a plurality of copper bar welding holes, and the bottom end of the second free cantilever is welded into the copper bar welding holes.

5. The rubber-coated copper busbar structure according to claim 1, characterized in that: The terminal seat and the first free cantilever are provided with matching fastening holes, and fasteners are installed in the fastening holes.

6. The rubber-coated copper busbar structure according to claim 1, characterized in that: The bottom of the plastic main frame is provided with a plurality of positioning structures, and the second control board is provided with a plurality of alignment holes matching the positioning structures, and the positioning structures are inserted into the alignment holes.

7. The rubber-coated copper busbar structure according to claim 2, characterized in that: There are three supporting walls, one inner buckle and two outer buckles.

8. An optical storage device, characterized in that: The invention comprises the rubber-coated copper busbar structure as described in any one of claims 1 to 7, wherein the rubber-coated copper busbar structure is arranged in a housing of a light storage device.

9. The optical storage device according to claim 8, characterized in that: The optical storage device housing consists of a lower housing and an upper cover shell detachably connected to the top of the lower housing.

10. The optical storage device according to claim 9, characterized in that: A radiator is also included, and the radiator is installed at the lower end of the lower housing.

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