CN221829228U - Household energy storage main control box - Google Patents

Abstract

The utility model provides a household energy storage main control box, which comprises: the outer surface of the box cover is provided with a concave part which is used for being stacked and matched with the battery pack to prevent dislocation; the box body is internally provided with a cavity, the box body and the box cover are sealed, and the box body is positioned above the box cover; and the fastener is used for detachably connecting the box body and the box cover. According to the utility model, the box body is connected with the box cover in a sealing way, and the box body is positioned above the box cover to form a flip-chip structure, so that the fastening piece between the box body and the box cover is hidden below the box body, and is covered by the box body, thereby increasing the overall aesthetic degree of the box body, reducing the direct contact between the fastening piece and outside water vapor, preventing the fastening piece from oxidizing corrosion, and improving the waterproof and moistureproof effects of the household energy storage main control box.

Description

Household energy storage main control box

Technical Field

The utility model relates to the technical field of energy storage, in particular to a household energy storage main control box.

Background

Household energy storage is an energy storage system, typically a battery energy storage system, used in a home or residential environment. Their primary purpose is to store electrical energy for daily use or use when needed. The household energy storage system can be combined with renewable energy systems such as a solar photovoltaic panel or a wind driven generator. In this way, the energy storage system may convert the electrical power to direct current and store it in a battery, which may be converted to alternating current for home use when needed.

The household energy storage system mainly comprises an energy storage converter, an energy management system and a battery management system, wherein the battery management system comprises a master control system and a slave control system, and in the master control system, the structure of a master control box is more and more, and the functions are more and more.

In carrying out the utility model, the inventors have found that at least the following problems exist in the prior art: the fastener between the box body and the box cover of the existing household energy storage main control box is exposed and is easy to be corroded by moist water vapor, so that the overall attractiveness of the box body is reduced.

Disclosure of utility model

The present utility model aims to solve at least one of the technical problems in the related art to a certain extent.

Therefore, the utility model aims to provide a household energy storage main control box, which solves the problem that a fastener on the existing household energy storage main control box is easy to corrode.

In order to achieve the above objective, the present utility model provides a household energy storage main control box, comprising:

The outer surface of the box cover is provided with a concave part which is used for being in stacked fit with the battery pack to prevent dislocation;

The box body is internally provided with a cavity, the box body is sealed with the box cover, and the box body is positioned above the box cover;

and the fastener is used for detachably connecting the box body and the box cover.

According to the household energy storage main control box, the box body is connected with the box cover in a sealing way, the box body is positioned above the box cover, a flip-chip structure is formed, the fastening piece between the box body and the box cover is hidden below the box body, the fastening piece is covered by the box body, the overall attractiveness of the box body is improved, direct contact between the fastening piece and outside water vapor is reduced, therefore, oxidation corrosion of the fastening piece can be prevented, and the waterproof and moistureproof effects of the household energy storage main control box are improved.

According to one embodiment of the utility model, the box body is provided with a box wall plate, a circle of flange is arranged on the end face of the box wall plate, and a sealing element is arranged in the flange.

According to one embodiment of the utility model, the box cover is provided with a box butt joint in a penetrating manner, and the box butt joint is used for penetrating a cable between the box and the battery pack.

According to one embodiment of the utility model, the box cover further comprises a fastener, a plurality of first fixing holes are formed in the outer edge of the box cover in a circle, threaded holes matched with the first fixing holes are formed in the flange, and the fastener penetrates through the first fixing holes and then is connected with the threaded holes.

According to one embodiment of the present utility model, the opening size of the recess portion is gradually increased from the outer surface of the case cover to the battery pack.

According to one embodiment of the utility model, a power indication circuit board is arranged in the box body, the power indication circuit board is provided with a plurality of LED lamps, a plurality of LED lamp holes are formed in the box wall plate, the LED lamps are in one-to-one correspondence with the LED lamp holes, a mask is arranged on the LED lamp holes, and an electric quantity mark is printed on the mask.

According to one embodiment of the utility model, the cable slot is arranged in the cavity, the first bearing plate is arranged on the first bearing plate, the second bearing plate is arranged on the first bearing plate, a boss is arranged in the middle of the second bearing plate, a channel is formed between the boss and the first bearing plate, and the cable slot is arranged on the boss.

According to one embodiment of the utility model, the edge of the first bearing plate is provided with a plurality of first ribbon fixing seats, the second bearing plate is provided with two opposite side walls, the boss is connected with the side walls, and the outer side face of the side walls is provided with a plurality of second ribbon fixing seats.

According to one embodiment of the utility model, the device further comprises a pre-charge resistor and a contactor, wherein the pre-charge resistor and the contactor are arranged on the first bearing plate.

According to one embodiment of the utility model, the box further comprises an RJ45 terminal, a quick plug terminal and a breaker, wherein the RJ45 terminal and the quick plug terminal are arranged at the front end of the box in a penetrating way, and the breaker is arranged at the rear end of the box in a penetrating way.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the utility model. Also, like reference numerals are used to designate like parts throughout the figures. Wherein:

fig. 1 is an exploded view of a household energy storage master control box according to an embodiment of the present utility model.

Fig. 2 is a schematic diagram of an exploded structure of a household energy storage master control box according to another embodiment of the present utility model.

Fig. 3 is a schematic diagram of the overall structure of a household energy storage master control box according to an embodiment of the utility model.

Reference numerals illustrate:

1-box, 2-RJ45 terminal, 3-quick-plug terminal, 4-pre-charging resistor, 5-contactor, 6-wire casing, 7-first loading board, 8-power indication circuit board, 9-second loading board, 10-facial mask, 11-circuit breaker, 12-box butt joint, 13-button, 101-case lid, 102-case wallboard, 103-first fixed orifices, 104-second fixed orifices, 701-third fixed orifices, 702-first ribbon fixing seat, 902-second ribbon fixing seat.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model. On the contrary, the embodiments of the utility model include all alternatives, modifications and equivalents as may be included within the spirit and scope of the appended claims.

Referring to fig. 1 to 3, an embodiment of the present utility model provides a household energy storage master control box. The household energy storage main control box is connected with the battery pack to realize the control of the charge and discharge process of the battery pack, and records and monitors the running state of the battery pack.

The household energy storage main control box of the embodiment comprises a box cover 101 and a box body 1. The outer surface of the case cover 101 has a recess for stacking engagement with the battery pack to prevent dislocation. The box body 1 is internally provided with a cavity, the box body is sealed with the box cover 101, and the box body 1 is positioned above the box cover 101. And the fastener is used for detachably connecting the box body and the box cover. The overall shape of the household energy storage main control box can be designed according to actual needs, and the household energy storage main control box can be in a shape close to a cuboid.

The cover of the conventional main control box is located above the box body, while in this embodiment, the box body 1 is located above the box cover 101, and a flip-chip structure is formed. The cavity in the box body is used for placing various electric appliances and devices. The shape of the concave part is designed based on the shape of the top surface of the battery pack, and the concave part and the battery pack are matched. The battery pack is internally provided with devices such as a battery core and the like. The seal between the case and the cover 101 may be made of various materials, such as a metal gasket seal, a rubber seal, etc. The case body and the case cover 101 are detachably connected, and are connected by fasteners, so that maintenance convenience is improved. The fasteners may be bolts, screws, or the like.

According to the household energy storage main control box disclosed by the embodiment of the utility model, the box body is connected with the box cover in a sealing way, the box body is positioned above the box cover to form a flip-chip structure, so that the fastening piece between the box body and the box cover is hidden below the box body, the fastening piece is covered by the box body, the overall attractiveness of the box body is improved, and the direct contact between the fastening piece and outside water vapor is reduced, so that the oxidation corrosion of the fastening piece can be prevented, and the waterproof and moistureproof effects of the household energy storage main control box are improved.

In some embodiments, as shown in fig. 1, the case 1 has a case wall 102, and a ring of flanges are provided on the end surface of the case wall 102, and a seal is provided in the flanges. The outer edge of the case cover 101 is provided with a plurality of first fixing holes 103, the flange is provided with threaded holes matched with the first fixing holes 103, and the fasteners penetrate through the first fixing holes 103 and then are connected with the threaded holes.

The case wall plate 102 has curved surfaces at four edges of the case body 1 in the height direction, reduces stress concentration, prevents cracking, and has an attractive appearance. When the case 1 and the case cover 101 are fastened together, the fastener needs to avoid the sealing member so as not to damage the sealing member. The number of the first fixing holes 103 and the screw holes is designed according to actual needs, and is not particularly limited. After the household energy storage main control box is installed, the opening end of the threaded hole faces downwards, in other words, when the fastening piece is a screw, the head of the screw faces downwards, the box body plays a role in covering the screw, the contact area between the screw and outside air is reduced, and the screw is waterproof and moistureproof.

The box wall plate 102 is provided with a second fixing hole 104, the second fixing hole 104 is used for installing a battery pack fixing piece, and the household energy storage main control box and the battery pack can be well fixed together by using the battery pack fixing piece. The battery pack fixing piece can adopt a metal connecting piece, and the connection stability is good.

The case cover 101 is provided with a case butt joint 12 in a penetrating manner, and the case butt joint 12 is used for penetrating a cable between the case 1 and the battery pack. The cable mainly comprises a cable conductor, a communication wire and the like.

In addition, the opening size of the recess portion gradually increases from the outer surface of the case cover 101 to the battery pack, and the shape is adapted to the guide structure of the upper end of the battery pack, so that the opening of the recess portion can be better guided by the guide structure, and the stacking fit of the case cover 101 and the battery pack is completed.

In some embodiments, as shown in fig. 1 to 3, a power indication circuit board 8 is disposed in the case 1, the power indication circuit board 8 is provided with a plurality of LED lamps, the case wall board 102 is provided with a plurality of LED lamp holes, the LED lamps are in one-to-one correspondence with the LED lamp holes, a mask 10 is disposed on the LED lamp holes, and an electric quantity identifier is printed on the mask 10. The mask may be adhered to the wall panel 102. It can be appreciated that the more the number of LED lamps is lit, the more the battery pack remaining power is displayed. The mask 10 is made of polyethylene terephthalate (PET) material, is oil-resistant, can block ultraviolet rays, and has good glossiness. Holes for the buttons 13 are also arranged on the mask 10 and the corresponding box wall plate 102. The button 13 is used for switching on and switching off the control power consumption of the main control system in the box body.

The household energy storage main control box further comprises a wire groove 6, a first bearing plate 7 and a second bearing plate 9, wherein the first bearing plate 7 is arranged in the cavity, the second bearing plate 9 is arranged on the first bearing plate 7, a boss is arranged in the middle of the second bearing plate 9, a channel is formed between the boss and the first bearing plate 7, and the wire groove 6 is arranged on the boss. The wire slot 6 plays a role in supporting, protecting and fixing the cable in the inner cavity. The wire slot 6 is designed to be detachable, so that the subsequent maintenance and replacement are facilitated. The first bearing plate 7 and the second bearing plate 9 form an upper-lower layered design, so that the utilization rate of the inner cavity space is improved. And a main control board is arranged in the space surrounded by the wire slots 6. The four corners of the first loading plate 7 are provided with third fixing holes 701, and the third fixing holes 701 are used for connecting the first loading plate 7 and the case 1 through fasteners.

The household energy storage main control box further comprises a pre-charging resistor 4 and a contactor 5, and the pre-charging resistor 4 and the contactor 5 are arranged on the first bearing plate 7. The precharge resistor 4 and the contactor 5 are used for precharging the battery pack, and the positions of the precharge resistor and the contactor can be arranged according to actual needs so as to facilitate wiring harness arrangement and space utilization. In addition, the edge of the first bearing plate 7 is provided with a plurality of first ribbon fixing seats 702, the second bearing plate 9 is provided with two opposite side walls, the boss is connected with the side walls, and the outer side surfaces of the side walls are provided with a plurality of second ribbon fixing seats 902. The number of first strap holders 702 and second strap holders 902 is designed according to actual needs. The first ribbon fixing seat 702 and the second ribbon fixing seat 902 are provided with threading holes, so that the ribbon can pass through, and the standard arrangement of the wire harness is facilitated.

The household energy storage main control box further comprises an RJ45 terminal 2, a fast plug-in terminal 3 and a breaker 11, wherein the RJ45 terminal 2 and the fast plug-in terminal 3 are located at the front end of the box body 1 in a penetrating mode, and the breaker 11 is located at the rear end of the box body 1 in a penetrating mode. The RJ45 terminal 2 is used for communication between the main control box and the outside, the quick plug terminal 3 can be connected with an external inverter, and the circuit breaker 11 is used for cutting off the connection between the battery and the inverter.

It should be noted that in the description of the present utility model, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Furthermore, in the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present utility model, the azimuth or positional relationship indicated by the terms "left", "right", "front", "rear", etc., are based on the azimuth or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.

Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and further implementations are included within the scope of the preferred embodiment of the present utility model in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present utility model.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims (10)

1. A household energy storage master control box, which is characterized by comprising:

the battery pack comprises a case cover (101), wherein the outer surface of the case cover (101) is provided with a concave part which is used for being in stacked fit with the battery pack to prevent dislocation;

The box body (1), a cavity is arranged in the box body (1), the box body (1) and the box cover (101) are sealed, and the box body (1) is positioned above the box cover (101);

And the fastener is used for detachably connecting the box body (1) and the box cover (101).

2. A household energy storage master box as claimed in claim 1, wherein the box body (1) is provided with a box wall plate (102), a circle of flange is arranged on the end face of the box wall plate (102), and a sealing element is arranged in the flange.

3. The household energy storage main control box according to claim 1, wherein a box body butt joint (12) is arranged on the box cover (101) in a penetrating manner, and the box body butt joint (12) is used for penetrating a cable between the box body (1) and the battery pack.

4. A household energy storage main control box according to claim 2, wherein a plurality of first fixing holes (103) are formed in the outer edge of the box cover (101) in a circle, threaded holes matched with the first fixing holes (103) are formed in the flange, and the fasteners penetrate through the first fixing holes (103) and then are connected with the threaded holes.

5. A household energy storage master box as claimed in claim 1, wherein the opening of the recess is of progressively larger size from the outer surface of the box cover (101) to the battery pack.

6. The household energy storage main control box according to claim 2, wherein a power indication circuit board (8) is arranged in the box body (1), the power indication circuit board (8) is provided with a plurality of LED lamps, a plurality of LED lamp holes are formed in the box wall plate (102), the LED lamps and the LED lamp holes are in one-to-one correspondence, a mask (10) is arranged on the LED lamp holes, and an electric quantity mark is printed on the mask (10).

7. The household energy storage main control box according to claim 1, further comprising a wire slot (6), a first bearing plate (7) and a second bearing plate (9), wherein the first bearing plate (7) is arranged in the cavity, the second bearing plate (9) is arranged on the first bearing plate (7), a boss is arranged in the middle of the second bearing plate (9), a channel is formed between the boss and the first bearing plate (7), and the wire slot (6) is arranged on the boss.

8. The household energy storage main control box according to claim 7, wherein the edge of the first bearing plate (7) is provided with a plurality of first ribbon fixing seats (702), the second bearing plate (9) is provided with two opposite side walls, the boss is connected with the side walls, and the outer side surface of the side walls is provided with a plurality of second ribbon fixing seats (902).

9. A household energy storage master control box according to claim 8, further comprising a pre-charge resistor (4) and a contactor (5), said pre-charge resistor (4) and said contactor (5) being provided on said first carrier plate (7).

10. A household energy storage master box as claimed in any one of claims 1 to 9, further comprising an RJ45 terminal (2), a quick plug terminal (3) and a circuit breaker (11), wherein the RJ45 terminal (2) and the quick plug terminal (3) are located at a front end penetrating the box body (1), and the circuit breaker (11) is located at a rear end penetrating the box body (1).