Electricity storage device

Abstract

The utility model discloses an electricity storage device, which comprises a shell comprising a first shell part and a connecting seat which are integrally formed, the surface of the first shell part is provided with two through holes communicated with the interior of the shell, and the connecting seat is located on the outer surface of the first shell part and arranged around the two through holes; a circuit board, wherein the circuit board is accommodated in the shell; and the conductive output piece is fixed on the circuit board, the conductive output piece comprises two pole columns electrically connected with the circuit board, and the two pole columns respectively penetrate through the two through holes and partially extend out of the shell. The utility model has the beneficial effects that the connecting seat and the shell are integrally formed, so that not only is the structure of the connecting seat simplified, but also a sealing structure additionally arranged between the connecting seat and the shell is avoided; and the connecting seats are arranged outside the two through holes for the pole columns to penetrate through in a surrounding manner, so that water vapor can be effectively prevented from entering the inner cavity of the shell through the through holes, and the air tightness in the power storage device is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to new energy technology field, specifically, relate to a kind of power storage device. BACKGROUND

[0002] Power storage device is generally connected with external power equipment by positive and negative pole post which is extended outside upper shell.

[0003] Considering the safety problem in the use of power storage device, connecting seat is arranged around positive and negative pole post, so that positive and negative pole post is located in the space formed by connecting seat, to insulate positive and negative pole post from external environment.

[0004] At present, the sealing type of connecting seat and upper shell is poor, and the structure is complex. UTILITY MODEL CONTENT

[0005] To solve the above problems, the purpose of the utility model is to provide a kind of power storage device.

[0006] The utility model provides a kind of power storage device, the power storage device includes:

[0007] Shell, including integrally formed first shell part and connecting seat, the surface of the first shell part is equipped with two through holes communicating the inside of the shell, the connecting seat is located the outer surface of the first shell part and is around the two through holes is arranged;

[0008] Circuit board, the circuit board is housed in the shell;And

[0009] Conductive output piece, fixed to the circuit board, the conductive output piece includes two pole posts electrically connected with the circuit board, the two pole posts respectively pass through the two through holes and partially extend to the outside of the shell.

[0010] As an optional implementation, the conductive output piece includes mounting seat, the mounting seat is located on the first surface of the circuit board, the mounting seat is sealedly connected with the inner wall surface of the shell, and the first surface is the surface of the circuit board towards the through hole;

[0011] The two pole posts are respectively connected with the circuit board by passing through the two through holes, and the two pole posts and the mounting seat are integrally formed.

[0012] As an optional implementation, the power storage device further includes first positioning structure, the first positioning structure includes two first positioning columns and two first positioning holes corresponding to the two first positioning columns;

[0013] The two first positioning columns are arranged on the surface of the mounting seat towards the circuit board;

[0014] The two first positioning holes are arranged on the circuit board; and / or,

[0015] The power storage device further comprises a first positioning notch arranged on the side of the mounting seat.

[0016] As an optional embodiment, the mounting seat comprises four legs, which abut against the first surface near one end of the circuit board;

[0017] The four legs are equal in height and / or the height of the four legs is less than the height of the first positioning column.

[0018] As an optional embodiment, a second positioning structure is further included, which comprises two second positioning columns and two second positioning holes corresponding to the two second positioning columns;

[0019] The two second positioning columns are arranged on the surface of the connecting seat facing the circuit board, and the two second positioning holes are arranged on the mounting seat;

[0020] The two second positioning holes comprise a circular hole and an oval hole.

[0021] As an optional embodiment, the connecting seat comprises a first wall body and a second wall body, the first wall body is located on the side close to the first shell part, and the second wall body is located on the side away from the first shell part;

[0022] The thickness of the first wall body is greater than the thickness of the second wall body.

[0023] As an optional embodiment, the connecting seat comprises a guide column and a guide plate, wherein the guide column is located between the two through holes, and the guide plate is arranged on the outer side surface of the connecting seat; and / or,

[0024] A second positioning notch is arranged on at least one side wall of the connecting seat.

[0025] As an optional embodiment, the guide column is integrally formed with the first shell part; the guide column is parallel to the two polar columns; and / or,

[0026] The guide column is arranged as a "cross" shaped column.

[0027] As an optional embodiment, the guide plate is integrally formed with the connecting seat; and / or,

[0028] The guide plate comprises a plurality of guide plates, and the plurality of guide plates are uniformly arranged on the outer side surface of the connecting seat; and / or,

[0029] The guide plate is arranged parallel to the two pole columns, and an end of the guide plate away from the first shell is arranged as an inclined surface.

[0030] As an optional implementation, the first shell is provided with a plurality of reinforcing ribs arranged on the surface of the side of the first shell facing the circuit board; and / or

[0031] The plurality of reinforcing ribs are arranged on the side of the first shell away from the circuit board and surrounded by the connecting seat.

[0032] The beneficial effects of the utility model are that the connecting seat and the shell are integrally formed, which not only simplifies the structure of the connecting seat, but also avoids the additional sealing structure between the connecting seat and the shell; and the connecting seat arranged around the two through holes for the pole columns can effectively prevent water vapor from entering the inner cavity of the shell through the through holes, thereby ensuring the air tightness of the internal storage device. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical solutions of the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0034] Figure 1 It is an exploded view of an exemplary storage device;

[0035] Figure 2 It is an assembly drawing of Figure 1

[0036] Figure 3 It is a structural schematic view of an exemplary first shell;

[0037] Figure 4 It is a top view of Figure 3

[0038] Figure 5 It is a structural schematic view of another perspective; Figure 3

[0039] Figure 6 It is an enlarged view of A in Figure 5

[0040] Figure 7 It is a structural schematic view of an exemplary mounting seat;

[0041] Figure 8 It is a top view of Figure 7

[0042] ​​​​​Figure 9 is a front view of Figure 7

[0043] Figure 10 is a structural schematic view of an exemplary power storage device.

[0044] in the drawings,

[0045] 10, first housing part; 11, reinforcing rib; 20, connecting seat; 21, guide post; 22, guide plate; 23, through hole; 24, second positioning post; 25, second positioning notch; 26, first wall body; 27, second wall body; 30, pole post; 40, mounting seat; 41, first positioning post; 42, first positioning hole; 43, supporting leg; 44, first positioning notch; 50, circuit board; 60, second housing part. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0047] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly.

[0048] In addition, in the description of the present application, the terms used are only for illustrative purposes, and are not intended to limit the scope of the present application. The terms "include" and / or "contain" are used to specify the existence of the described elements, steps, operations and / or components, but do not exclude the existence or addition of one or more other elements, steps, operations and / or components. The terms "first", "second", etc. can be used to describe various elements, and do not represent the order and do not limit these elements. In addition, in the description of the present application, unless otherwise specified, the meaning of "multiple" is two and more than two. These terms are only used to distinguish one element from another. These and / or other aspects become apparent from the following drawings, and those skilled in the art can more easily understand the description of the embodiments described in the present application. The drawings are used to depict the embodiments described in the present application only for illustrative purposes. Those skilled in the art will easily realize from the following description that alternative embodiments of the structures and methods shown in the present application can be used without departing from the principles of the present application. ​

[0049] The utility model discloses a kind of power storage devices, the power storage device includes shell, circuit board and conductive output piece. Among them:

[0050] Shell includes integrally formed first shell part and connecting seat, the surface of first shell part is equipped with two through holes communicating inside shell, connecting seat is located on the outer surface of first shell part and is set around two through holes;Circuit board is received in shell;Conductive output piece is fixed on circuit board, and conductive output piece includes two pole posts electrically connected with circuit board, two pole posts pass through two through holes respectively and partially extend to outside shell.

[0051] It is known that, as Figure 10 Indicated, the shell of power storage device generally includes first shell part 10 and second shell part 60, first shell part 10 and second shell part 60 form containing space, circuit board 50 and energy storage module (not shown in the figure) are placed in the containing space. Among them, first shell part 10 is for example the upper shell of energy storage device, and second shell part 60 is for example the lower shell of energy storage device, the upper shell cover is arranged on the lower shell to form the containing space, and the circuit board 50 and energy storage module are placed in the containing space. Below, with first shell part 10 as the upper shell of energy storage device is as example to be explained.

[0052] For ease of understanding, the X axis in the drawing of the application is the length direction of energy storage device;Y axis is the thickness direction of energy storage device;Z axis is the height direction of energy storage device.

[0053] Referring to Figure 1 And Figure 10 For example, along the height direction of power storage device, first shell part 10 is located above second shell part 60, and connecting seat 20 is located on the upper surface of first shell part 10 away from second shell part 60. First shell part 10 and connecting seat 20 are for example integrally injection molded, not only can improve the connection strength and stability between first shell part 10 and connecting seat 20, but also simplify the connecting structure of first shell part 10 and connecting seat 20, without the aid of fastener, the stable connection between the two can be realized. Thus, the volume of power storage device is reduced to a certain extent, and the weight of power storage device is reduced, which is beneficial to improve the energy density of power storage. In addition, first shell part 10 and connecting seat 20 do not exist connecting gap directly, and it is also not necessary to use specific sealing structure to seal the two, further simplify the overall structure.

[0054] It can be understood that, in the height direction of the power storage device, the lower end of the connecting seat 20 is connected with the first shell part 10, and the upper end of the connecting seat 20 extends a certain distance away from the first shell part 10, so that the connecting seat 20 has a certain height, facilitating the connection with the connecting seat of the external power consumption equipment, and improving the stability of the connection therebetween. The height of the connecting seat 20 can be determined according to the type of the external power consumption equipment, which is not specifically limited in the present application.

[0055] Further, referring to Figures 4 to 6 , two through holes 23 for the poles 30 to pass through are arranged in the area where the first shell part 10 is surrounded by the connecting seat 20. It can be easily understood that one of the two poles 30 is a positive pole, and the other is a negative pole, and the two through holes 23 have a gap therebetween to avoid the risk of interference or short circuit of the two poles 30 being too close. The two through holes 23 penetrate the first shell part 10 from the height direction of the power storage device, so that the two poles 30 respectively pass through the corresponding through holes 23 and extend to the outside of the first shell part, so as to facilitate the electrical connection with the external power consumption equipment.

[0056] Referring to Figure 2 , the part of the two poles 30 located outside the first shell part 10 (for example, the part of the poles 30 located above the upper surface of the first shell part 10) is surrounded by the connecting seat 20. On the one hand, the connecting seat 20 can play a protective role on the poles 30 to avoid deformation of the poles 30 caused by collision with the external environment; on the other hand, the connecting seat 20 also has a certain isolation and insulation effect on the poles 30 to avoid the risk of short circuit with the conductor in the external environment.

[0057] Preferably, the part of the two sheet-shaped poles 30 located outside the first shell part 10 can be flush with the height of the connecting seat 20, or slightly smaller than the height of the connecting seat 20, so that the connecting seat 20 can play a better protective role on the poles 30.

[0058] Further, referring to Figure 1 , the two poles 30 are fixed to the circuit board 50 by the lower ends thereof and are connected with the circuit board 50. It can be understood that the two poles 30 are electrically connected with the energy storage module (not shown in the figure) through the circuit board 50, so that the energy storage device supplies power to the external power consumption equipment under the control of the circuit board 50, to improve the safety during power consumption. The circuit board 50 may, for example, be located above the energy storage module, i.e. the circuit board 50 is located between the first shell part 10 and the energy storage module, which can facilitate the connection between the circuit board 50 and the energy storage module, and also facilitate the extension of the poles 30 fixed to the circuit board 50 to the outside of the first shell part 10.

[0059] Referring to Figure 1 and Figure 7This is to further illustrate the connection relationship between the pole 30 and the circuit board 50.

[0060] like Figure 1 As shown, a mounting base 40 is provided on the first surface of the circuit board 50. The first surface of the circuit board 50 is, for example, the surface of the circuit board 50 facing the first housing portion 10, i.e., the upper surface of the circuit board 50. The two terminals 30 can be first connected and fixed to the mounting base, and then fixed to the circuit board 50 by the mounting base 40. It can be understood that the end of the terminal 30 away from the first housing portion 10, i.e., the lower end of the terminal 30, extends to the bottom of the mounting base 40 so that the lower end of the terminal 30 can be electrically connected to the circuit board 50.

[0061] Preferably, the terminal post 30 and the mounting base 40 can be integrally injection molded to improve the stability of the connection between the terminal post 30 and the mounting base 40. At the same time, the injection molding of two terminal posts 30 and mounting base 40 can improve the assembly efficiency between the terminal post 30, the mounting base 40 and the circuit board 50. Only one operation is needed to fix the two terminal posts 30 and the mounting base 40 onto the circuit board 50, avoiding the tedious steps of installing individual components one by one, and greatly simplifying the manufacturing process.

[0062] In some embodiments, the mounting base 40 is sealed to the inner wall of the housing; this reduces the entry of external moisture into the housing and improves the safety of the energy storage device.

[0063] Specifically, an adhesive layer and / or a sealing ring can be provided on the side of the mounting base 40 facing the inner wall of the housing.

[0064] In one alternative embodiment, the energy storage device further includes a first positioning structure, which enables the conductive output component to be accurately mounted on the circuit board 50. Specifically, the two terminals 30 are accurately mounted on the circuit board 50 to avoid reverse connection problems when the two terminals 30 are connected to external electrical equipment.

[0065] For example, such as Figure 9 As shown, the first positioning structure includes two first positioning posts 41 disposed on the mounting base 40 and two first positioning holes (not shown) disposed on the circuit board 50. The first positioning posts 41 are disposed on the side of the mounting base 40 facing the circuit board 50, and the first positioning holes penetrate the circuit board 50, for example, along the height direction of the energy storage device. The assembly relationship between the mounting base 40 and the circuit board 50 is determined by the mating relationship between the first positioning posts 41 and the first positioning holes, thereby achieving accurate installation of the two pole pieces 30.

[0066] Two first positioning posts 41 are arranged, for example, at positions close to the same side of the mounting seat 40. For example, when the mounting seat 40 is arranged in a rectangular shape, two positioning posts 41 can be arranged at positions of the same long side of the mounting seat 40, and two positioning holes are arranged at positions of the circuit board 50 corresponding to the long side; or the two positioning posts 41 can be arranged at positions of the same short side of the mounting seat 40, and the two positioning holes can be arranged at positions of the circuit board 50 corresponding to the short side.

[0067] The two first positioning posts 41 can also position the mounting seat 40 and the circuit board 50 in other manners, for example, the two first positioning posts 41 can be arranged in different shapes or sizes, and the present application does not make specific limitations on the positioning posts as long as the correct installation of the two pole posts 30 can be achieved.

[0068] Further, as shown in Figure 7 and Figure 8 , the first positioning structure further includes a first positioning notch 44 arranged at the side of the mounting seat 40. Still taking the example that the mounting seat 40 is arranged in a rectangular shape, the first positioning notch 44 can be arranged on any side of the rectangle, that is, the first positioning notch 44 can be arranged on any long side of the mounting seat 40, or the first positioning notch 44 can be arranged on any short side of the mounting seat 40. Thus, the installation direction of the mounting seat 40 can be identified according to the arrangement position of the first positioning notch 44, and the correct installation of the two pole posts 30 on the circuit board 50 is ensured. The first positioning notch 44 can also be arranged in multiple, and the installation direction of the mounting seat 40 can be identified by the arrangement position of the first positioning notch or by arranging the multiple first positioning notches 44 in different shapes. The present application does not make specific limitations on the arrangement of the first positioning notch 44 as long as the installation direction of the mounting seat 40 can be correctly identified.

[0069] It should be noted that the first positioning notch 44 can cooperate with the first positioning post 41 and the first positioning hole to identify the installation direction of the mounting seat 40, or the first positioning notch 44 or the first positioning post 41 and the first positioning hole can be used alone to identify the direction of the mounting seat 40. In use, adaptive selection can be made according to the situation.

[0070] For further description of the structure of the mounting seat 40, see Figures 7 to 9 .

[0071] As shown in Figure 7 and Figure 9As shown in the figure, the mounting base 40 includes four supporting legs 43, which are located on the side of the mounting base 40 facing the circuit board 50, i.e. the four supporting legs 43 are arranged on the bottom surface of the mounting base 40. The mounting base 40 is supported on the circuit board 50, and there is a certain gap between the mounting base 40 and the circuit board 50, so as to facilitate heat dissipation of the circuit board 50.

[0072] It can be understood that the four supporting legs 43 are of equal height, so as to stably support the mounting base 40 and avoid tilting of the mounting base 40, thereby ensuring that the two pole columns 30 can smoothly pass through the through holes 23 and extend to the outside of the first shell part 10.

[0073] As described above, the first positioning column 41 is also arranged on the bottom surface of the mounting base 40, i.e. the first positioning column 41 and the supporting legs 43 are arranged on the same side. The height of the supporting legs 43 is less than the height of the first positioning column 41, so that the first positioning column 41 can be smoothly inserted into the first positioning hole to position the mounting base 40, and the supporting legs 43 do not interfere with the first positioning column 41, so that the first positioning column 41 cannot be inserted into the first positioning hole and the mounting base 40 cannot be positioned.

[0074] Preferably, the four supporting legs 43 are uniformly arranged on the bottom surface of the mounting base 40, so that the mounting base 40 can be uniformly stressed at each position to stably support the mounting base 40. Tilting of the mounting base due to uneven stress at some positions is avoided. Still taking the example of the mounting base 40 being arranged in a rectangular shape, the four supporting legs 43 are arranged, for example, at the four corners of the mounting base 40 to stably support the mounting base 40. The supporting legs 43 can also be arranged in other manners, and in use, the arrangement manner of the supporting legs 43 can be determined according to the shape of the mounting base 40, which is not limited in the present application.

[0075] In an alternative embodiment, the power storage device further includes a second positioning structure for positioning between the first shell part 10 and the mounting base 40, so that the two pole columns 30 can pass through the corresponding through holes 23, thereby accurately electrically connecting with the external circuit. At the same time, the first shell part 10 is in a pre-tightened state, so as to facilitate fastening connection of the first shell part 10 and the second shell part through fasteners from the peripheral side of the first shell part 10.

[0076] Reference is made to Figures 5 to 8 for further description of the second positioning structure.

[0077] As Figures 5 to 8As shown, the second positioning structure includes two second positioning posts 24 disposed on the side surface of the connecting seat 20 facing the circuit board 50, and two second positioning holes 42 disposed on the mounting seat 40. The assembly relationship between the first housing 10 and the circuit board 50 can be determined by the cooperation relationship between the two second positioning posts 24 and the two second positioning holes 42, thereby enabling the two pole posts 30 to pass through the corresponding second through holes 23.

[0078] like Figure 5 and Figure 6 As shown, two second positioning posts 24 are disposed, for example, on the lower surface of the connector 20. The two second positioning posts 24 can be integrally injection molded with the connector 20 and the first housing 10 to improve the strength and connection stability of the two second positioning posts 24. It is understood that the end of the second positioning post 24 furthest from the connector 20 extends a certain distance toward the circuit board 50 to give the second positioning post 24 a certain height so that it can be smoothly inserted into the second positioning hole 42. The two second positioning posts 24 are disposed, for example, in the gap between the two through holes 23, which on the one hand provides clearance for the machining of the through holes 23; on the other hand, it also ensures a certain distance between the two pole posts 30, improving safety during use.

[0079] like Figure 7 and Figure 8 As shown, the two second positioning holes 42 can penetrate the mounting base 40 along the height direction of the energy storage device. Similar to the two second positioning posts 24, the two second positioning posts 24 can also be correspondingly arranged in the gap between the two pole posts 30 to ensure that the pole posts 30 will not interfere with the processing of the positioning holes 42, and at the same time, to ensure that there is a sufficient safe distance between the two pole posts 30.

[0080] Preferably, one of the two positioning holes 42 is a circular hole and the other is an elliptical hole, such that the minor axis of the elliptical hole is equal to the diameter of the circular hole, and the extension of the major axis of the elliptical hole passes through the center of the circular hole. The first housing 10 is precisely positioned by the engagement between the first positioning post 24 and the circular hole; auxiliary positioning is also achieved by the engagement between the first positioning post 24 and the elliptical hole, preventing over-positioning of the first housing 10 and thus avoiding difficulties in installing the first housing 10 and the second housing.

[0081] In one alternative embodiment, the connecting seat includes a first wall and a second wall, the first wall being located on the side closer to the first shell and the second wall being located on the side farther from the first shell, and the thickness of the first wall being greater than the thickness of the second wall, so as to improve the strength at the connection position between the first shell and the connecting seat.

[0082] For details, please refer to Figures 1 to 3The connecting seat 20 has a stepped structure along the height direction of the power storage device. It can be understood that the connecting seat 20 includes a first wall body 26 and a second wall body 27 along the height direction of the power storage device. The first wall body 26 and the second wall body 27 are both arranged around the two through holes 23, that is, the first wall body 26 and the second wall body 27 surround the two through holes 23 in the space formed on the inner side thereof.

[0083] That is, the connecting seat 20 is divided into two parts along the height direction of the power storage device, for example, the first part is the first wall body 26, which is close to the first shell part 10, and the second part is the second wall body 27, which is away from the first shell part 10. The thickness of the first part is greater than that of the second part, so that the first part has higher strength, which can avoid deformation or cracking of the connecting seat 20 due to repeated plugging with external electrical equipment; at the same time, the second part has a thinner thickness, which can facilitate the plugging between the connecting seat of the electrical equipment and the connecting seat 20.

[0084] Further, the connecting seat includes a guide column 21 and a guide plate 22, so as to guide the plugging direction of the connecting seat of the electrical equipment during the plugging process of the connecting seat 20 and the electrical equipment, and improve the plugging accuracy and efficiency of the connecting seat 20.

[0085] Continuing to refer to Figures 1 to 3 to further illustrate the structure of the guide column 21 and the guide plate 22. Among them:

[0086] The guide column 21 is arranged in the gap between the two through holes 23, and the guide column 21 can be arranged at the center position of the gap between the two through holes 23, for example. The guide column 21 can be integrally injection molded with the connecting seat 20 and the first shell part 10, so as to improve the connection stability between the guide column 21 and the connecting seat 20. The end of the guide column 21 away from the first shell part 10 extends a certain distance upward along the height direction of the power storage, so as to facilitate the connecting seat of the electrical equipment to contact the guide column 21 as soon as possible and guide the plugging direction thereof.

[0087] Optionally, the height of the guide column 21 can be equal to the height of the part of the pole 30 extending to the outside of the first shell part 10, or the height of the guide column 21 can be slightly smaller than the part of the pole 30 extending to the outside of the first shell part 10. In use, adaptive selection can be made according to the situation, and the present application does not make specific limitation thereto.

[0088] Preferably, the guide column 21 can be arranged as a "cross" column body, that is, the guide column 21 includes two plate bodies intersecting perpendicularly, which can limit the movement of the connecting seat of the electrical equipment from multiple dimensions, so as to better guide. The guide column 21 can also be arranged as a prism, such as a three-prism or a four-prism, which also has good guiding effect, and is not limited to the above-mentioned "cross" column body.

[0089] The guide plate 22 can be arranged on the outer side of the connecting seat 20, and the guide plate 22 can be integrally injection molded with the connecting seat 20 to improve the stability of the connection between the guide plate 22 and the connecting seat 20. It can be understood that the guide plate 22 and the guide column 21 are parallel to each other, thereby playing a synergistic role in guiding the insertion direction and avoiding interference between the guide plate 22 and the guide column 21 during the guiding process. It can be understood that the guide plate 22 extends from top to bottom along the height direction of the power storage device, so that the guide plate 22 has a certain height.

[0090] Preferably, the height of the guide plate 22 in the height direction of the power storage device is less than the height of the connecting seat 20, so that the guide plate 22 is arranged at a relatively upper position of the connecting seat 20. For example, the upper end of the guide plate 22 is flush with the upper end of the connecting seat 20, and the lower end of the guide plate 22 is a certain distance from the lower end of the connecting seat 20, that is, the lower end of the guide plate 22 is a certain distance from the upper surface of the first shell part 10, so as to form a clearance space for the connecting structure of the connecting seat 20 and the external power-using equipment, thereby improving the stability of the connection between the connecting seat 20 and the power-using equipment.

[0091] More preferably, the upper end of the guide plate 22 is arranged as an inclined surface, and the distance between the inclined surface and the outer side of the connecting seat 20 gradually increases along the height direction of the power storage device. In this way, the connecting seat of the power-using equipment can be easily sleeved onto the guide plate 22, so as to better guide the insertion direction.

[0092] The guide plate 22 can be arranged as a plurality of guide plates, which are uniformly arranged on the outer side of the connecting seat 20, so that the connecting seat 20 can guide the insertion direction from multiple positions, and the insertion seat of the power-using equipment is uniformly stressed at each insertion position, thereby avoiding the inclination of the insertion seat during the insertion process due to uneven stress, and preventing the insertion from being out of position.

[0093] Taking the connecting seat 20 as an example, which is similar to a "ring" shape, that is, the connecting seat 20 has four side walls, and the guide plate 22 can be arranged as four guide plates, one guide plate 22 being arranged on the outer surface of each side wall. The number of guide plates 22 is not limited in the present application.

[0094] Further, at least one second positioning gap 25 is arranged on the side wall of the connecting seat 20, for example, the second positioning gap 25 can be arranged on any one of the side walls of the connecting seat 20, so as to identify the insertion direction between the connecting seat 20 and the power-using equipment, thereby avoiding the reverse insertion between the two; in addition, the second positioning gap 25 can also form a clearance space for the connecting structure of the connecting seat 20 and the power-using equipment, thereby facilitating the insertion of the connecting seat 20 and the power-using equipment.

[0095] It should be noted that the connecting seat 20 can form the second positioning notch 25 by reducing one side wall, i.e. the connecting seat 20 has only three side walls, and the other side wall is the second positioning notch 25; or the second positioning notch 25 can be formed by reducing only a part of the side wall. At this time, the number of guide plates 22 can be appropriately reduced and uniformly distributed on the three side walls of the connecting seat 20, and the guiding effect of the guide plates 22 will not be affected.

[0096] In an alternative embodiment, a plurality of reinforcing ribs 11 are arranged on the first shell portion 10. On the one hand, the strength of the first shell portion 10 and the connecting seat 20 can be improved; on the other hand, it can also ensure that the first shell portion 10 and the connecting seat 20 will not deform due to temperature reduction after injection molding. Specifically, as shown in Figure 5 For example, the reinforcing ribs 11 can be arranged on the surface of the side of the first shell portion 10 facing the circuit board 50; for another example, the reinforcing ribs 11 can also be arranged on the upper surface of the region of the first shell portion 10 surrounded by the connecting seat 20 (not shown in the figure). In use, a proper number of reinforcing ribs 11 can be arranged at the corresponding positions of the first shell portion 10 and the connecting seat 20 as needed, which is not limited in the present application.

[0097] In the specification provided herein, a large number of specific details are described. However, it can be understood that the embodiments of the present application can be practiced without these specific details. In some examples, well-known methods, structures and techniques are not shown in detail in order not to obscure the understanding of the present specification.

[0098] In addition, those skilled in the art can understand that although some embodiments described herein include certain features included in other embodiments but not others, the combination of features of different embodiments means to be within the scope of the present application and form different embodiments. For example, in the claims, any one of the claimed embodiments can be used in any combination.

[0099] Those skilled in the art will understand that although the present application has been described with reference to exemplary embodiments, various changes and substitutions can be made without departing from the scope of the present application, and elements thereof can be replaced with equivalents. In addition, many modifications can be made to adapt a particular situation or material to the teachings of the present application without departing from the essential scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed, but the present application will include all embodiments falling within the scope of the appended claims.

Claims

1. An electrical energy storage device, characterized by, The application relates to a power storage device, which comprises the following parts: a shell, a circuit board and a conductive output part. The shell comprises a first shell part and a connecting seat, the surface of the first shell part is provided with two through holes which are connected with the inside of the shell, and the connecting seat is arranged on the outer surface of the first shell part and surrounds the two through holes. The circuit board is arranged in the shell. The conductive output part is fixed to the circuit board and comprises two pole columns which are electrically connected with the circuit board, the two pole columns respectively pass through the two through holes and partially extend out of the shell.

2. The power storage device according to claim 1, wherein The conductive output part comprises a mounting seat which is arranged on the first surface of the circuit board, the mounting seat is sealingly connected with the shell, and the first surface is the surface of the circuit board facing the through holes. The two pole columns are electrically connected with the circuit board by respectively passing through the two through holes, and the two pole columns and the mounting seat are integrally formed.

3. The power storage device according to claim 2, wherein The power storage device further comprises a first positioning structure which comprises two first positioning columns and two first positioning holes corresponding to the two first positioning columns. The two first positioning columns are arranged on the surface of the mounting seat facing the circuit board.

4. The power storage device according to claim 3, wherein The two first positioning holes are arranged on the circuit board. The mounting seat further comprises a first positioning notch arranged on the side of the mounting seat.

5. The power storage device according to claim 2, wherein The mounting seat comprises four supporting legs which are in abutment with the first surface at one end close to the circuit board. The heights of the four supporting legs are equal and / or the heights of the four supporting legs are smaller than the height of the first positioning column. The power storage device further comprises a second positioning structure which comprises two second positioning columns and two second positioning holes corresponding to the two second positioning columns.

6. The power storage device according to claim 1, wherein The two second positioning columns are arranged on the surface of the connecting seat facing the circuit board. The two second positioning holes comprise a circular hole and an elliptical hole.

7. The power storage device according to claim 1, wherein The connecting seat comprises a first wall body and a second wall body, the first wall body is arranged on the side close to the first shell part, and the second wall body is arranged on the side away from the first shell part. The thickness of the first wall body is greater than the thickness of the second wall body.

8. The power storage device according to claim 7, wherein The connecting seat comprises a guide column and a guide plate, the guide column is arranged between the two through holes, and the guide plate is arranged on the outer side surface of the connecting seat. At least one side wall of the connecting seat is provided with a second positioning notch.

9. The power storage device according to claim 7, wherein The guide column is integrally formed with the first shell part, the guide column is parallel to the two pole columns, and / or The guide column is arranged in the shape of a cross-shaped column. The guide plate is integrally formed with the connecting seat, and / or 10. The power storage device according to claim 1, wherein The guide plate comprises a plurality of guide plates which are uniformly arranged on the outer side surface of the connecting seat. The guide plate is arranged in parallel with the two pole columns, and one end of the guide plate away from the first shell part is arranged in the shape of an inclined surface. The first shell part is provided with a plurality of reinforcing ribs. The plurality of reinforcing ribs are arranged on the surface of the side of the first shell part facing the circuit board, and / or The plurality of reinforcing ribs are arranged in the area of the first shell part surrounded by the connecting seat and on the side away from the circuit board.

Images