CN221080066U

CN221080066U - Bus bar for pile structure and pile structure

Info

Publication number: CN221080066U
Application number: CN202322556009.8U
Authority: CN
Inventors: 毕计风; 王天威; 龚正伟; 陈雪松
Original assignee: Weishi Energy Technology Co Ltd
Current assignee: Weishi Energy Technology Co Ltd
Priority date: 2023-09-20
Filing date: 2023-09-20
Publication date: 2024-06-04
Anticipated expiration: 2033-09-20

Abstract

The utility model discloses a busbar for a pile structure and a pile structure, wherein the busbar comprises: the connecting terminal comprises two connecting terminals, a sealing structure, an anode connecting portion and a cathode connecting portion, wherein the two connecting terminals and the sealing structure are integrally injection molded, the anode connecting portion and the cathode connecting portion are respectively connected with the corresponding connecting terminals, at least one of the anode connecting portion and the cathode connecting portion is constructed into a flexible structure, and the hardness of at least part of the flexible structure is smaller than that of the connecting terminals. According to the bus bar, the connecting terminal and the sealing structure are integrally formed through injection molding, so that the integration level of the bus bar is improved, meanwhile, the positive electrode connecting part and the negative electrode connecting part are connected with the corresponding connecting terminals, the integration level of the bus bar is further improved, the assembly efficiency of the bus bar is improved, at least part of the hardness of the flexible structure is smaller than that of the connecting terminal, and therefore the flexible structure can absorb part of machining errors and assembly errors.

Description

Bus bar for pile structure and pile structure

Technical Field

The utility model relates to the technical field of pile connecting component design, in particular to a busbar for a pile structure and the pile structure.

Background

In the related art, the bus bar is used as an electric connection member between the electric pile and the DC/DC, and is mainly used for outputting the electric pile current to the DC/DC, and generally the electric connection member is provided with copper bar-copper bar connection, copper bar-high voltage connector connection and the like, while the bus bar is difficult to be arranged on the electric pile, and the hardness of the bus bar is the same, so that errors generated during processing and errors generated during assembly are difficult to be removed.

Disclosure of utility model

The present utility model aims to solve at least one of the technical problems existing in the prior art. The utility model provides a busbar for a galvanic pile structure, which is simple to install, has high assembly efficiency and can absorb partial assembly errors and machining errors during assembly.

According to an embodiment of the present utility model, a bus bar for a stack structure includes: the connecting terminals and the sealing structure are integrally injection molded. The positive electrode connecting portion and the negative electrode connecting portion are respectively connected with the corresponding connecting terminals, wherein at least one of the positive electrode connecting portion and the negative electrode connecting portion is constructed into a flexible structure, and at least part of the flexible structure has hardness smaller than that of the connecting terminals.

According to the busbar provided by the embodiment of the utility model, the connecting terminal and the sealing structure are integrally injection molded, so that the integration level of the busbar is improved, meanwhile, the positive electrode connecting part and the negative electrode connecting part are connected with the corresponding connecting terminals, the integration level of the busbar is further improved, the assembly efficiency of the busbar is improved, and at least part of the hardness of the flexible structure is smaller than that of the connecting terminal, so that the flexible structure can absorb part of processing errors and assembly errors.

According to some embodiments of the utility model, the flexible structure is detachably connected to the corresponding connection terminal.

According to some embodiments of the utility model, the flexible structure includes a first sub-section and a second sub-section, the first sub-section is connected between the second sub-section and the corresponding connection terminal, and at least part of the second sub-section has a hardness smaller than that of the first sub-section.

According to some embodiments of the utility model, the first subsection and the second subsection are detachably connected.

According to some embodiments of the utility model, the flexible structure includes a horizontal portion connected to the corresponding connection terminal and a bent portion bent to be connected to the horizontal portion.

A busbar for a galvanic pile structure according to some embodiments of the utility model, one portion of the flexible structure being raised relative to the other portion to form a raised portion; and/or one portion of the flexible structure is recessed relative to another portion to form a recess.

According to the busbar for the galvanic pile structure, the sealing structure is provided with the mounting hole, and the connecting terminal penetrates through the mounting hole.

According to some embodiments of the utility model, the sealing structure comprises a plate body and an annular sealing strip, the mounting hole is formed in the plate body, and the annular sealing strip is connected with the plate body and sleeved on the outer side of the connecting terminal.

According to some embodiments of the utility model, the bus bar for a galvanic pile structure, the connection terminal is configured as a conductive member, and the sealing structure is configured as a plastic member.

The utility model also provides a pile structure.

According to an embodiment of the present utility model, a pile structure includes: a core, a bus bar configured as in any one of the embodiments above, the bus bar being electrically connected to the core.

The pile structure has the same advantages as the bus bar compared with the prior art, and is not described herein.

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

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic diagram of a bus bar according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a bus bar according to another embodiment of the present utility model;

FIG. 3 is a cross-sectional view of the connection terminal and seal structure of FIG. 1;

fig. 4 is a schematic view of some cell stack structures according to the present utility model.

Reference numerals:

A galvanic pile structure 1000;

Current collector 100, positive current collector 100a, negative current collector 100b;

a bus bar 200;

A core 300;

A positive electrode connection portion 10a, a negative electrode connection portion 10b;

Connection terminal 11, horizontal plate 111, vertical plate 112, positive connection terminal 113, negative connection terminal 114;

A flexible structure 20, a horizontal part 21, a bending part 22, a first subsection 23 and a second subsection 24;

a convex portion 25, a concave portion 26;

The sealing structure 30, the mounting hole 31, the plate body 32 and the annular sealing strip 33.

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.

The following disclosure provides many different embodiments, or examples, for implementing different structures of the utility model. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the utility model. Furthermore, the present utility model may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present utility model provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the applicability of other processes and/or the use of other materials.

A bus bar 200 for a stack structure according to an embodiment of the present utility model is described below with reference to fig. 1 to 4.

As shown in fig. 1 to 3, a bus bar 200 for a stack structure according to an embodiment of the present utility model includes: two connection terminals 11, a sealing structure 30, a positive electrode connection portion 10a, and a negative electrode connection portion 10b.

The two connection terminals 11 are injection molded integrally with the sealing structure 30, and the positive electrode connection portion 10a and the negative electrode connection portion 10b are connected to the respective connection terminals 11, respectively, wherein at least one of the positive electrode connection portion 10a and the negative electrode connection portion 10b is configured as a flexible structure 20, and at least a portion of the flexible structure 20 has a hardness smaller than that of the connection terminals 11.

Thus, the sealing structure 30 and the connection terminal 11 are integrally injection-molded, so that the busbar 200 is simpler when being arranged on a galvanic pile, the assembly efficiency can be improved, meanwhile, the integral injection-molded part of the busbar 200 is fewer, the assembly speed can be increased, and at least part of the hardness of the flexible structure 20 is smaller than that of the connection terminal 11, so that the flexible structure 20 can absorb part of processing errors and assembly errors.

For example, the connection terminal 11 may be used for electrical connection of an external structure, and the connection terminal 11 may be configured as a hard copper bar and the hard copper bar is bent into an "L" shape, and the sealing structure 30 is configured as a plastic plate, so that the plastic plate can be integrally injection-molded with the hard copper bar, thereby integrating the sealing structure 30 and the connection terminal 11 together, so that fewer parts of the bus bar 200 are enabled, assembly of the bus bar 200 when connected with the stack structure 1000 is facilitated, thereby improving assembly efficiency, and at the same time, at least part of the connection terminal 11 protrudes out of the sealing structure 30, i.e., the "L" shaped hard copper bar can protrude out of the plastic plate on one side during integral injection molding, so that the protruding portion can become an output end of the connection terminal 11.

As shown in fig. 1, the positive electrode connection portion 10a and/or the negative electrode connection portion 10b may be configured as a flexible structure 20, for example, the flexible structure 20 may be a soft copper bar, that is, the positive electrode connection portion 10a and/or the negative electrode connection portion 10b may be configured as a soft copper bar, so that the positive electrode connection portion 10a and/or the negative electrode connection portion 10b may have a certain flexibility while satisfying the conductivity thereof, and thus, when the positive electrode connection portion 10a and/or the negative electrode connection portion 10b are connected with the corresponding connection terminal 11 or the core 300, a machining error and an assembly error of a flexible absorption portion of the flexible structure 20 may be utilized, thereby facilitating the reduction of the assembly difficulty thereof and the improvement of the assembly efficiency.

According to the bus bar 200 of the embodiment of the present utility model, the connection terminal 11 and the sealing structure 30 are integrally injection-molded to improve the integration of the bus bar 200, and at the same time, the positive electrode connection portion 10a and the negative electrode connection portion 10b are connected to the corresponding connection terminal 11, which further improves the integration of the bus bar 200, thereby improving the assembly efficiency of the bus bar 200, while at least a portion of the flexible structure 20 has a hardness smaller than that of the connection terminal 11, which enables the flexible structure 20 to absorb a portion of the processing error and the assembly error.

In some embodiments, as shown in fig. 1-3, the flexible structure 20 is removably connected to the corresponding connection terminal 11.

Note that, the connection form between the flexible structure 20 and the connection terminal 11 may be a clamping connection, a magnetic connection, a welding connection, a snap connection, or the like, and in this embodiment, the connection form between the flexible structure 20 and the connection terminal 11 is not limited.

Thus, the connection terminal 11 is more easily connected to the flexible structure 20, and the integration of the bus bar 200 formed by the connection terminal 11 and the flexible structure 20 can be made higher, thereby making the assembly efficiency of the bus bar 200 when assembled to the core 300 higher.

In some embodiments, as shown in fig. 2, the flexible structure 20 includes a first sub-section 23 and a second sub-section 24, the first sub-section 23 is connected between the second sub-section 24 and the corresponding connection terminal 11, and at least a portion of the second sub-section 24 has a hardness less than that of the first sub-section 23.

It should be noted that the first sub-section 23 and the second sub-section 24 may be connected in a welded manner, so that the connection strength between the first sub-section 23 and the second sub-section 24 is higher, and the integration level of the busbar 200 can be mentioned, and the end of the second sub-section 24, which is not connected to the first sub-section 23, may be connected to the current collecting plate 100, so that the electricity in the core 300 can be led out to the corresponding connection terminal 11 through the second sub-section 24 and the first sub-section 23.

Further, the first subsection 23 has a hardness greater than that of the second subsection 24, for example, the first subsection 23 may be configured as a hard copper bar, and the second subsection 24 may be configured as a soft copper bar, such that the soft copper bar can absorb machining errors and assembly tolerances, and can promote versatility of the busbar 200, while the hard copper bar can make the sealing structure 30 more stable when mounted to the galvanic pile structure 1000.

Thus, the first sub-section 23 and the second sub-section 24 are connected to improve the integration level of the bus bar 200, so that the assembly efficiency can be further improved, and the different hardness of the first sub-section 23 and the second sub-section 24 can make the sealing structure 30 more stable in installation and make the bus bar 200 more universal.

In some embodiments, as shown in fig. 2, the first subsection 23 and the second subsection 24 are removably connected.

It should be noted that, the connection form of the first sub-section 23 and the second sub-section 24 may be a form of clamping, welding, magnetic attraction connection, snap connection, or the like, and in this embodiment, the connection form of the first sub-section 23 and the second sub-section 24 is not limited.

Thus, the first and second subsections 23, 24 are detachably connected to make the bus bar 200 easier to assemble, and to increase the integration of the bus bar 200, thereby making the bus bar 200 more efficient when installed in the core 300.

In some embodiments, as shown in fig. 1-2, the flexible structure 20 includes a horizontal portion 21 and a bent portion 22, the horizontal portion 21 is connected to the corresponding connection terminal 11, and the bent portion 22 is bent to be connected to the horizontal portion 21.

Therefore, the horizontal part 21 of the flexible structure 20 is connected with the corresponding connecting terminal 11, so that current conduction can be realized, and the bending part 22 is connected with the horizontal part 21 in a bending way, so that the flexible structure 20 can be arranged in the reactor core 300 more conveniently, and part of machining errors and assembly errors can be absorbed, the assembly difficulty is facilitated, and the improvement of the assembly efficiency is facilitated.

In some embodiments, as shown in fig. 1-2, one portion of the flexible structure 20 is raised relative to another portion to form a raised portion 25; and/or one portion of the flexible structure 20 is recessed relative to another portion to form a recess 26.

Therefore, by arranging a part of the flexible structure 20 as the protruding portion 25 and/or the recessed portion, the processing error and the assembly error of the part can be absorbed by the protruding portion 25 and/or the recessed portion, the assembly difficulty can be facilitated, and the assembly efficiency can be improved.

In some embodiments, as shown in fig. 3, the connection terminal 11 includes a horizontal plate 111 and a vertical plate 112, the sealing structure 30 abuts against the horizontal plate 111, and the vertical plate 112 and the horizontal plate 111 are bent to be connected and protrude from the sealing structure 30.

It should be noted that, when the busbar 200 is mounted on the electric pile, the horizontal plate 111 is sandwiched between the sealing structure 30 and the surface of the core 300, and the vertical plate 112 and the horizontal plate 111 are connected and can protrude from the sealing structure 30, so that the protruding portion of the vertical plate 112 can be electrically connected with the external structure.

Thus, by dividing the connection terminal 11 into the horizontal plate 111 and the vertical plate 112, it is ensured that the connection terminal 11 can be connected to the current collecting plate 100, and the connection terminal 11 can have enough protrusions to be electrically connected to an external structure.

In some embodiments, as shown in fig. 3, the sealing structure 30 is provided with a mounting hole 31, and the connection terminal 11 is penetrated through the mounting hole 31.

Thereby, the connection terminal 11 is penetrated through the mounting hole 31 of the sealing structure 30 to fix and limit the connection terminal 11 through the sealing structure 30, thereby enhancing the structural stability of the connection terminal 11.

In some embodiments, as shown in fig. 1-3, the sealing structure 30 includes a plate body 32 and an annular sealing strip 33, the mounting hole 31 is provided on the plate body 32, and the annular sealing strip 33 is connected to the plate body 32 and sleeved on the outer side of the connection terminal 11.

It should be noted that, the annular sealing strip 33 is sleeved on the outer side of the connection terminal 11, and the annular sealing strip 33 is further connected with the plate body 32, so that the annular sealing strip 33 can seal the mounting hole 31, thereby ensuring that no gap exists between the connection terminal 11 and the sealing structure 30, and thus the connection terminal 11 is not easy to have unstable connection in use.

Thus, the annular seal 33 can seal the gap between the connection terminal 11 and the seal structure 30, and the connection terminal 11 is less likely to be unstable in connection when in use.

In some embodiments, as shown in fig. 1-3, an annular sealing strip 33 is located on a side of the plate body 32 facing away from the horizontal portion 21.

Therefore, the annular sealing strip 33 faces the side, away from the horizontal portion 21, of the plate body 32, and therefore the annular sealing strip 33 cannot affect the offset between the plate body 32 and the horizontal portion 21, and the annular sealing strip 33 can provide circumferential sealing for the joint of the plate body 32 and the connecting terminal 11, so that the sealing structure 30 achieves a better sealing effect.

In some embodiments, the connection terminal 11 is configured as a conductive member and the sealing structure 30 is configured as a plastic member.

It should be noted that, the connection terminal 11 configured as the conductive member may be a hard copper bar, or may be other conductive parts, and the sealing structure 30 is configured as a plastic member, so that the connection terminal 11 and the sealing structure 30 can be integrated together more easily, and the plastic member can provide a good insulating effect, and the plastic member can make the processing easier, thereby improving the assembly efficiency.

Thus, the connection terminal 11 configured as a conductive member can draw out the electric quantity in the cell stack structure 1000, and the sealing structure 30 configured as a plastic member can enable the sealing structure 30 to be better integrated with the connection terminal 11 while ensuring the insulation effect.

In some embodiments, as shown in fig. 1-2, the connection terminal 11 includes a positive connection terminal 113 and a negative connection terminal 114, the positive connection terminal 113 and the negative connection terminal 114 being spaced apart in the length direction of the sealing structure 30.

The positive electrode connection terminal 113 and the negative electrode connection terminal 114 may be spaced apart in the longitudinal direction of the sealing structure 30, or may be spaced apart in the width direction of the sealing structure 30, and the connection form of the positive electrode connection terminal 113 and the negative electrode connection terminal 114 in the present embodiment is merely illustrative, and is not limited herein.

Thus, the division of the connection terminal 11 into the positive connection terminal 113 and the negative connection terminal 114 enables the cell stack structure 1000 to correctly draw out current, and the distribution forms of the positive connection terminal 113 and the negative connection terminal 114 can be varied.

The utility model also provides a galvanic pile structure 1000.

As shown in fig. 4, the stack structure 1000 according to the embodiment of the present utility model includes a core 300, and the bus bars 200 are configured as the bus bars 200 of any one of the above embodiments, and the bus bars 200 are electrically connected with the core 300.

For example, the core 300 is provided with the current collecting plate 100, and the current collecting plate 100 is also divided into a positive current collecting plate 100a and a negative current collecting plate 100b, wherein the positive current collecting plate 100a is electrically connected to the positive connection portion 10a, and the negative current collecting plate 100b is electrically connected to the negative connection portion 10b, and the connection manner may be bolt connection, so that the connection stability of the two can be ensured.

According to the stack structure 1000 of the embodiment of the present utility model, the integration of the bus bar 200 is improved by integrally injection molding the connection terminals 11 and the sealing structure 30 in the bus bar 200 thereon, and the positive electrode connection portion 10a and the negative electrode connection portion 10b are connected to the corresponding connection terminals 11, so that the integration of the bus bar 200 is further improved, thereby improving the assembly efficiency of the bus bar 200, and at least a portion of the flexible structure 20 has a hardness smaller than that of the connection terminals 11, so that the flexible structure 20 can absorb a portion of the processing errors and the assembly errors.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

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; the device can be mechanically connected, electrically connected and communicated; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. 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 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 are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. A busbar (200) for a galvanic pile structure, characterized by comprising:

The connecting terminals (11) and the sealing structure (30) are integrally injection molded with the sealing structure (30);

A positive electrode connection portion (10 a) and a negative electrode connection portion (10 b), the positive electrode connection portion (10 a) and the negative electrode connection portion (10 b) being connected to the corresponding connection terminals (11), respectively;

Wherein at least one of the positive electrode connection portion (10 a) and the negative electrode connection portion (10 b) is configured as a flexible structure (20), at least part of the flexible structure (20) having a hardness smaller than that of the connection terminal (11).

2. The busbar (200) for a galvanic pile structure according to claim 1, characterized in that the flexible structure (20) is detachably connected to the corresponding connection terminal (11).

3. The busbar (200) for a galvanic pile structure according to claim 1, characterized in that the flexible structure (20) comprises a first sub-section (23) and a second sub-section (24), the first sub-section (23) being connected between the second sub-section (24) and the respective connection terminal (11), and at least part of the second sub-section (24) having a hardness smaller than that of the first sub-section (23).

4. A busbar (200) for a galvanic pile structure according to claim 3, characterized in that the first subsection (23) and the second subsection (24) are detachably connected.

5. The bus bar (200) for a galvanic pile structure according to claim 1, wherein the flexible structure (20) includes a horizontal portion (21) and a bent portion (22), the horizontal portion (21) being connected to the corresponding connection terminal (11), the bent portion (22) being bent to be connected to the horizontal portion (21).

6. The busbar (200) for a galvanic pile structure according to claim 1, characterized in that one part of the flexible structure (20) is raised with respect to the other part to form a raised portion (25); and/or one portion of the flexible structure (20) is recessed relative to another portion to form a recess (26).

7. The busbar (200) for a galvanic pile structure according to claim 1, wherein the sealing structure (30) is provided with a mounting hole (31), and the connection terminal (11) is penetrated through the mounting hole (31).

8. The busbar (200) for a galvanic pile structure according to claim 7, wherein the sealing structure (30) includes a plate body (32) and an annular sealing strip (33), the mounting hole (31) is provided in the plate body (32), and the annular sealing strip (33) is connected to the plate body (32) and is sleeved outside the connection terminal (11).

9. The busbar (200) for a galvanic pile structure according to claim 1, characterized in that the connection terminal (11) is configured as an electrically conductive piece and the sealing structure (30) is configured as a plastic piece.

10. A galvanic pile structure (1000), characterized by comprising

A core (300);

a bus bar (200), the bus bar (200) being configured as the bus bar (200) of any one of claims 1-9, and the bus bar (200) being electrically connected with the core (300).