CN221041457U - Pole adapter component - Google Patents

Abstract

The utility model belongs to the field of batteries, and particularly relates to a pole adapter component. The technical problems of electrical connection of the large-capacity battery and complex glue injection process after glue injection are overcome. The device comprises a pole adapter and an electric connecting component arranged on the pole adapter; the pole adapter is used for being connected with each single battery pole, and a clamping part for installing the liquid cooling pipe is arranged on the pole adapter; the electrical connection component is used for being connected with an external electrical connection piece and preventing the insulating sealant from overflowing out of a part of the glue injection area. When the insulating sealant layer with the thickness larger than that of the pole adapter component is paved on the top plate of the shell, the use of partial glue injection molds can be reduced, and the glue injection process is simplified.

Description

Pole adapter component

Technical Field

The utility model belongs to the field of batteries, and particularly relates to a pole adapter component.

Background

In the market, a plurality of single batteries are connected in parallel or in series to form a large-capacity battery (also called a battery module or a battery pack).

However, in the existing large-capacity battery, each single battery has a difference, and due to the existence of the barrel effect, the single battery with the worst performance is often affected, so that the upper limit of the capacity and the cycle number of the whole large-capacity battery are extremely limited. Therefore, how to improve the uniformity of each single battery in the large-capacity battery becomes an important point and a difficult point of research in the field.

In order to solve the above-described problems, the related art proposes a large-capacity battery including a case 1 and a plurality of unit cells 2 as shown in fig. 1 and 2; a plurality of single batteries 2 are placed in the shell 1 in parallel, and a pole avoiding hole 12 is formed in the shell top plate 11 corresponding to each single battery pole 21; each single battery pole 21 is connected with the pole adapter 3 through a pole avoiding hole 12, and the area of the shell 1 corresponding to the pole avoiding hole 12 is fixedly sealed with the shell of the single battery 2.

As shown in fig. 2, a sealing connector 13 is generally added between the pole avoidance hole 12 and the upper cover plate of the single battery 2 to realize sealing. The sealing connector 13 comprises a hollow member, the bottom of which is used for sealing connection with the first area of the single battery 2, and the top of which is used for sealing connection with the second area of the shell 1; the first area is an area positioned at the periphery of any pole in the upper cover plate of any single battery 2; the second area is the area corresponding to any pole avoiding hole 12 on the shell 1. The area corresponding to the pole avoiding hole 12 is the peripheral area of any pole avoiding hole 12 corresponding to the outer surface of the shell 1; or the region corresponding to the pole avoiding hole 12 is the wall of the pole avoiding hole 12. The area around the pole is the area around the insulating sealing pad on the pole. The insulating gasket is a part for insulating between the post and the upper cover plate on the unit cell 2. When the dimensions of each unit cell 2 in the group in the z direction are relatively consistent, the area of the housing 1 corresponding to the pole avoiding hole 12 can be directly welded with the upper cover plate area around the unit cell pole 21 to realize sealing.

The bottom plate of the shell 1 is provided with the electrolyte sharing chamber 4, the electrolyte sharing chamber 4 is communicated with electrolyte areas of the inner cavities of the single batteries 2, the single batteries 2 can be in a unified electrolyte environment through the electrolyte sharing chamber 4, the uniformity of electrolyte in the single batteries 2 is ensured, and the performance and the cycle life of the high-capacity battery are improved.

The shell top plate 11 can be further provided with a gas chamber 9, the gas chamber 9 can be communicated with a gas area of the inner cavity of each single battery 2, so that the gas balance of each single battery 2 is realized, and the performance and the cycle life of the high-capacity battery are further improved. The gas chamber 9 can also be used as an explosion venting channel, when any single battery 2 is in thermal runaway, the thermal runaway smoke in the inner cavity of the single battery 2 enters the gas chamber 9 to break through an explosion venting mechanism arranged at any end of the gas chamber 9, and is discharged.

The high-capacity battery can emit heat in the use process, if heat dissipation is not timely, the service life of the battery is greatly shortened, the energy loss is aggravated, even potential safety hazards such as spontaneous combustion and ignition occur, therefore, in order to improve the heat dissipation efficiency of the high-capacity battery, a liquid cooling pipe can be fixed on the pole adapter 3, and heat dissipation is realized through a primary heat exchange mode.

However, in the long-time use process, due to the temperature difference between the inside and outside of the liquid cooling pipe, condensation is generated on the surface, when the condensation is accumulated to a certain amount, the condensation can infiltrate into the gap between the pole adapter 3 and the top plate 11 of the housing, when the sealing connector 13 is arranged, the condensation can also infiltrate into the space between the sealing connector 13 and the pole or the pole adapter 3, so that the pole adapter 3 is electrically connected with the housing 1, and further, the short circuit condition of the same single battery 2 can be caused.

In order to solve the above problem, an insulating sealant with a thickness greater than that of the pole adaptor 3 may be laid on the top plate 11 of the casing, and the whole pole adaptor 3 is wrapped by the insulating sealant, that is, the gaps between the pole adaptor 3 and the top plate 11 of the casing are filled with the insulating sealant, so that the condensation cannot enter the gap between the pole adaptor 3 and the top plate 11 of the casing, and the high-capacity battery has higher safety.

However, after the pole adapter 3 is completely wrapped by the insulating sealant, how to realize electrical connection with external equipment is a problem to be solved, in addition, in the process of injecting the sealant, the insulating sealant is easy to overflow from the top surface 36 of the pole adapter and flows to the outer wall of the shell 1, and a glue injection mold can be adopted, but after the glue injection is completed, demolding is needed, and the process is complex; in addition, during the demolding, the structure of the insulating sealant may be damaged, resulting in a decrease in the reliability of the sealing property.

Disclosure of utility model

The utility model aims to provide a pole adapter component, which solves the technical problems of electric connection of a large-capacity battery and complex glue injection process after glue injection.

The technical scheme of the utility model is to provide a pole adapter component, which is characterized in that: the device comprises a pole adapter and an electric connecting component arranged on the pole adapter;

the pole adapter is used for being connected with each single battery pole, and a clamping part for installing a liquid cooling pipe is arranged on the pole adapter;

The electric connecting component is used for being connected with an external electric connecting piece and preventing the insulating sealant from overflowing out of a part of the glue injection area.

According to the utility model, the electric connecting part is additionally arranged on the pole adapter, and part of the structure of the electric connecting part is connected with an external electric connecting part, so that the electric connecting part can be directly used as the electric connecting part, and the serial connection of at least two large-capacity batteries is realized; the other part of structure of the electric connecting part can be used as a glue blocking structure to prevent the insulating sealing glue solution from overflowing into part of the glue injection area, and when the insulating sealing glue layer with the thickness larger than the thickness of the pole adapter component is paved on the top plate of the shell, the use of part of glue injection moulds can be reduced, and the glue injection procedure is simplified.

Further, the electric connection component is an inverted L-shaped plate; the vertical plate of the inverted L-shaped plate is parallel to the xz plane and is fixed on the top surface of the pole adapter, so that the insulating sealant is prevented from overflowing from a part of the glue injection area; the part of the glue injection area is the top surface of the pole adapter;

The transverse plate of the inverted-L plate is parallel to the xy plane for connection with external electrical connectors or as electrical connectors.

Further, the electrical connection member further includes a first bearing plate, the first bearing plate is parallel to the xz plane, and is fixed on the transverse plate of the inverted L-shaped plate, and extends toward the bottom surface of the pole adapter.

Further, the electric connection component is a Z-shaped plate and comprises a first electric connection plate, a second electric connection plate and a third connection plate;

The first electric connection plate is parallel to the xy plane, covers and is fixed on the top surface of the pole adapter; the top surface of the first electric connecting plate is used as a part of glue injection area; a liquid cooling tube avoiding notch is formed in the surface of the first electric connection plate matched with the top surface of the pole adapter;

The third connecting plate is positioned between the first electric connecting plate and the second electric connecting plate and is used for preventing the insulating sealant from overflowing from a part of the glue injection area, and the part of the glue injection area is the top surface of the first electric connecting plate;

the second electrical connection plate is parallel to the xy plane for connection with an external electrical connection.

Further, the electrical connection component further comprises an L-shaped electrical connection board, a vertical connection board of the L-shaped electrical connection board is connected with the second electrical connection board, and a transverse connection board extends in a direction away from the first electrical connection board and is used for being connected with an external electrical connection piece or used as an electrical connection piece.

Further, the pole adapter comprises a pole adapter and n electric connecting posts which are fixed on the pole adapter and protrude out of the pole adapter, wherein n is more than or equal to 1;

The pole adapter is provided with n first holes which are in one-to-one correspondence with the electric connecting poles, and each electric connecting pole is connected with the single battery pole through each first hole.

Further, the clamping part is a through groove formed in the pole adapter, and the size of the through groove is matched with that of the liquid cooling pipe.

The beneficial effects of the utility model are as follows:

1. According to the utility model, the electric connecting part is additionally arranged on the pole adapter, the pole adapter is connected with each single battery pole, and part of the electric connecting part is connected with the external electric connecting part, so that the electric connecting part can be directly used as the electric connecting part, and the serial connection of at least two large-capacity batteries is realized; the other part of structure of the electric connecting part can be used as a glue blocking structure to prevent the insulating sealing glue solution from overflowing into part of the glue injection area, and when the insulating sealing glue layer with the thickness larger than the thickness of the pole adapter component is paved on the top plate of the shell, the use of part of glue injection moulds can be reduced, and the glue injection procedure is simplified.

2. The utility model adopts the electric connecting part of the inverted L-shaped plate, at the moment, the top surface of the pole adapter can be injected with the adhesive, the vertical plate can prevent the insulating sealant from overflowing from the top surface of the pole adapter, the transverse plate is connected with an external electric connecting piece, and the electric connecting piece can also be directly used as the electric connecting piece, has simple structure, and can be integrally formed with the pole adapter.

3. The utility model adopts the electric connecting component of the Z-shaped plate, the first electric connecting plate can cover and be fixed on the top surface of the pole adapter, at the moment, the glue can be injected on the top surface of the first electric connecting plate of the Z-shaped plate, the third connecting plate can prevent the insulating sealant from overflowing from the top surface of the first electric connecting plate, and the second electric connecting plate is connected with an external electric connecting piece and can also be directly used as the electric connecting piece; the electric connecting part and the pole adapter are arranged in a split mode, and when the electric connecting part is fixed on the pole adapter, the effect of pressing the liquid cooling pipe can be achieved, the contact area of the liquid cooling pipe and the clamping part of the liquid cooling pipe is increased, and the heat exchange efficiency is improved.

Drawings

Fig. 1 is a schematic view of a structure of a large-capacity battery in the related art;

fig. 2 is a sectional view of a large-capacity battery according to the related art;

FIG. 3 is a schematic view of a pole adapter assembly according to embodiment 1;

FIG. 4 is a cross-sectional view of the pole adapter assembly of example 1;

Fig. 5 is a schematic structural view of a large-capacity battery of embodiment 2;

Fig. 6 is a schematic view of a partial exploded structure of a large-capacity battery according to example 3;

Fig. 7 is a schematic structural view of a large-capacity battery of embodiment 3;

fig. 8 is a schematic structural diagram of an insulating frame in embodiment 3;

fig. 9 is a schematic view showing a partial structure of a large-capacity battery according to embodiment 3;

Fig. 10 is a cross-sectional view of the large-capacity battery of example 3;

FIG. 11 is a cross-sectional view of the pole adapter assembly of example 4;

fig. 12 is a sectional view of the large-capacity battery in example 5;

Fig. 13 is a schematic structural view of an electrical connection member in embodiment 6;

FIG. 14 is a cross-sectional view of the pole adapter assembly of example 6;

fig. 15 is a cross-sectional view of the large-capacity battery of example 7;

fig. 16 is a schematic structural view of an insulating frame in embodiment 8;

fig. 17 is a schematic view showing a partial structure of a large-capacity battery in embodiment 8;

Fig. 18 is a cross-sectional view of the large-capacity battery of example 8;

fig. 19 is a schematic structural view of an electrical connection member in embodiment 9;

fig. 20 is a cross-sectional view of the large-capacity battery of example 10.

The reference numerals in the drawings are:

1. A housing; 11. a housing top plate; 12. a pole avoiding hole; 13. sealing the connection member; 14. a liquid-cooled tube; 2. a single battery; 21. a single battery post; 3. a pole adapter; 31. an electrical connection post; 33. the outer side surface of the pole adapter; 34. an electrical connection member; 341. a vertical plate; 342. a transverse plate; 343. a first electrical connection board; 344. a second electrical connection board; 345. a third connecting plate; 346. a liquid cooling pipe avoiding channel; 35. the bottom surface of the pole adapter; 36. the top surface of the pole adapter; 37. a pole adapter side; 4. an electrolyte sharing chamber; 9. a gas chamber; 10. an insulating protective cover; 101. a second sidewall; 102. a slit; 103. a first sidewall; 104. an insulating frame; 1041. a long frame; 1042. a first surface; 1043. a glue baffle plate; 1044. reinforcing ribs; 105. an insulating cover plate; 106. a baffle; 107. an insulating frame; 108. an insulating base plate; 1081. an electric connection column avoiding hole; 1082. a partition plate; 109. a pole adapter receiving cavity; 110. an annular rubber blocking ring; 111. an annular groove; 112. a first separator; 113. a second separator; 114. a third separator; 115. a fourth separator; 38. an L-shaped electrical connection board; 39. a vertical connecting plate; 40. a transverse connection plate; 41. a first pressure-bearing plate; 42. a second pressure-bearing plate; 43. a first hole; 44. a first through hole;

a. a first gap; b. a second gap; c. a third gap; d. a fourth gap; f. and (5) a hollowed-out area.

Detailed Description

So that the manner in which the above recited objects, features and advantages of the present utility model can be understood in detail, a more particular description of the utility model, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by "top, bottom" or the like in terms are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device 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. Furthermore, the terms "first or second, etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In order to improve the insulating sealing performance of the top of the high-capacity battery, the condensation generated by the liquid cooling pipe is prevented from penetrating into the battery to cause short circuit. According to the utility model, insulating sealant is poured on the whole pole adapter of the high-capacity battery.

The following two problems need to be considered with great importance:

1. the problem of electrical connection of the pole adapter;

2. glue overflow problem of pole adapter top surface in glue injection process:

Regarding problem 1, it is possible to overcome the following way:

Through optimizing the structure of the pole adapter, an electric connecting part is additionally arranged on the pole adapter, and the electric connecting part is ensured not to be injected with glue and is used for being connected with the electric connecting part; the electrical connector described herein is a connector that enables the series connection of two large capacity batteries; the connection device may be a device for connecting the large-capacity battery to an external load.

Regarding problem 2, it is possible to overcome the following way:

a glue blocking structure is additionally arranged on the pole adapter; the glue blocking structure may be part of the electrical connection member.

Based on the analysis, the pole adapter is improved, and the utility model is described in detail below with reference to the accompanying drawings and the specific embodiments.

Example 1

The present embodiment is a pole adapter assembly, whose structure is shown in fig. 3, comprising a pole adapter 3 and an electrical connection member 34; the pole adapter 3 is used for being connected with each single battery pole 21, and the top surface 36 of the pole adapter is used as an insulating sealant laying surface; the electrical connection member 34 is for connection with an external electrical connection while preventing the escape of insulating sealant from the pole adaptor top surface 36.

The structure of the pole adapter 3 is shown in fig. 3 and 4, and the pole adapter 3 of the present embodiment includes a pole adapter body and an electrical connection post 31 disposed on the pole adapter body;

the pole adapter body is a rectangular block, and in other embodiments, the pole adapter body may be a cylinder. Can be made of metal materials with better electric conductivity and thermal conductivity, for example: silver, copper, aluminum, etc., but aluminum is generally selected as the material of the pole adapter body from the standpoint of cost and the effects of electrical and thermal conduction.

The electrical connection post 31 in this embodiment is a cylinder fixed at the bottom of the pole adaptor body, and the section of the cylinder is adapted to the section of the single battery pole 21; is connected to the battery cell post 21 through the electrical connection post 31.

In order to facilitate connection between the electrical connection post 31 and the battery cell post 21, in this embodiment, a first hole 43 is formed in the post adaptor body, where the first hole 43 may be a through hole or a blind hole; when the through hole is formed, the through hole can be a step through hole, and the through hole is connected to the single battery pole 21 in a screw connection mode; in the case of a blind hole, the bottom of the blind hole and the battery cell post 21 can be connected by fusion welding. The reliability of the welded connection is higher than that of the screw connection, so the first hole 43 of the present embodiment is preferably a blind hole, and the welded connection is selected. To eliminate the welding stress, a first through hole 44 may be provided through the blind hole at the bottom of the blind hole. It is also understood that the first hole 43 is configured as a stepped hole with a large hole near the top surface of the pole adapter body and a small hole near the bottom surface of the pole adapter body, as shown in fig. 4.

Considering that the conductivity of the hollow conductor is weaker than that of the solid conductor due to the different flow guide sections, the conductive post can be fixed in the first hole 43 in this embodiment after the post adaptor is connected to the single battery post, so as to improve the conductivity of the post adaptor 3.

The first hole 43 may be a round hole, a square hole or other anisotropic holes; in order to adapt to the shape of the pole, a round hole is preferred in this embodiment. The shape of the conductive post is matched with the first hole 43, and the conductive post is a cylinder, the outer diameter of the conductive post can be slightly larger than the aperture of the first hole 43, and the conductive post is connected with the first hole 43 in an interference fit manner, so that the conductive post is conveniently fixed in the first hole 43, and a chamfer can be arranged on the end face of the conductive post. The height of the conductive post may be the same as the hole depth of the first hole 43, or may be slightly smaller than the hole depth of the first hole 43, which is not limited in this embodiment. The material of the conductive post is the same as the material of the post adapter body.

In this embodiment, a clamping portion for mounting the liquid cooling tube 14 is provided on the pole adapter. After a large-capacity battery is built by using the single battery 2 with the pole adapter 3, the liquid cooling pipe 14 is arranged at the clamping part of the pole adapter 3, and heat concentrated on the pole can be transferred from the pole adapter 3 to the liquid cooling pipe 14 and then brought out. Similarly, when the environmental temperature is too low and the unit batteries 2 may not be started normally, the external temperature control device can also heat each unit battery 2 through the liquid cooling pipe 14.

The clamping part can be a through hole or a through groove formed in the pole adapter main body, and the through hole or the through groove extends along the x direction and penetrates through two ends of the pole adapter main body; the dimensions of the through holes or through slots are required to ensure a tight clamping of the liquid-cooled tube 14 therein, so as to ensure the mounting stability while also ensuring the heat transfer effect between the liquid-cooled tube 14 and the pole adapter 3.

As can be seen from fig. 3 and 4, in the present embodiment, the electrical connection member 34 and the pole adapter 3 are integrally formed, and in the x-direction, the electrical connection member 34 and the pole adapter 3 are equal in size. The electrical connection component 34 is an inverted-L-shaped plate, the vertical plate 341 of the inverted-L-shaped plate is parallel to the xz plane, and is fixed on the edge extending along the x direction of the pole adaptor top surface 36, so that the insulating sealing glue solution can be prevented from overflowing from the edge extending along the x direction of the pole adaptor top surface 36, and the transverse plate 342 is parallel to the xy plane and is used for being connected with an external electrical connector, and in some cases, the transverse plate 342 can also be directly used as an electrical connector.

Example 2

The present embodiment is a high-capacity battery with the pole adapter assembly in embodiment 1, and the structure of the high-capacity battery is shown in fig. 5, and the high-capacity battery can directly inject glue into the pole adapter 3, so that the insulation sealing glue completely wraps the whole pole adapter 3, that is, an insulation sealing glue layer with a thickness greater than the thickness (z-direction dimension) of the pole adapter 3 is paved on the top plate 11 of the casing, so that the insulation sealing glue layer completely covers the pole adapter 3; it will also be appreciated that in addition to providing an insulating sealant layer in the first gap (region a) between the pole adapter bottom surface 35 and the housing top plate 11, an insulating sealant layer is provided on both the pole adapter top surface 36 and each of the pole adapter side surfaces 37. The bottom face 35 of the pole adapter is a face of the pole adapter 3 parallel to the housing top plate 11 and close to the housing top plate 11, and the top face 36 of the pole adapter is a face of the pole adapter 3 parallel to the housing top plate 11 and far from the housing top plate 11; the pole adapter side 37 is the face of the pole adapter 3 that is perpendicular to the pole adapter bottom face 35 and the pole adapter top face 36.

It should be noted that, during the glue injection process, it is necessary to ensure that the transverse plate 342 of the electrical connection member 34 extends out of the insulating sealant layer, i.e., the transverse plate 342 has no insulating sealant thereon. The transverse plates 342 are used to connect with external electrical connectors by which adjacent large capacity cells can be connected in series. In some cases, adjacent large-capacity batteries may use the lateral plates 342 of the respective electrical connection members 34 as electrical connectors, and the series connection of two large-capacity batteries is achieved by the interconnection of the respective lateral plates 342.

If the housing top plate 11 is not provided with the gas chamber 9, the housing top plate 11 needs to be provided with openings corresponding to the explosion venting openings of the individual battery cells 2, and the peripheral area of the openings is sealed with the upper cover plate of the battery cell 2. When injecting glue, can set up and keep off glued structure in each battery cell 2 let out and explode mouthful top, prevent that insulating seal glue solution from covering let out and explode mouthful, initiate the incident, after the injecting glue is accomplished, dismantle and keep off glued structure can. In addition, when the top plate 11 of the housing is provided with the gas chamber 9, the gas chamber 9 can be used as a glue blocking structure.

In the process of glue injection, under the blocking of the vertical plate 341 of the electric connecting component 34 and the gas chamber 9, the insulating sealing glue liquid cannot overflow from the edge of the pole adapter 3 parallel to the x direction; however, the insulating sealant may overflow from the edge parallel to the y direction and may overflow from the top plate 11 of the housing, and therefore, the sealant injection mold needs to be additionally provided to prevent the insulating sealant from overflowing from the edge parallel to the y direction and the top plate 11 of the housing, and the sealant injection mold is removed after the sealant injection is completed.

Example 3

Unlike embodiment 2, in this embodiment, on the basis of embodiment 2, an insulating protective cover 10 is added to the top of the large-capacity battery; on the one hand, potential safety hazards possibly existing when the pole adapter 3 is exposed in the running process of the high-capacity battery can be avoided, the problem that the high-capacity battery is short-circuited due to the fact that some foreign matters in the external environment fall into the position of the pole adapter 3 is also avoided, and the safety of the high-capacity battery is improved; on the other hand, the part of the structure of the insulating protective cover 10 is used as a glue injection mould, so that the glue injection process is simplified, demoulding is not needed after glue injection is completed, and meanwhile, the bonding strength between the insulating protective cover 10 and the top of the large-capacity battery can be improved.

As shown in fig. 6 and 7, the insulation shield 10 includes an insulation frame 104 and an insulation cover 105 covering the insulation frame 104; the lower end of the insulating frame 104 is used for matching with the top of the high-capacity battery, and is fixed on the top of the high-capacity battery by means of screw connection or bonding, etc., the upper end of the insulating frame 104 is buckled and provided with an insulating cover plate 105, and the upper end of a side wall (the second side wall 101) parallel to xz of the insulating frame 104 is provided with a notch, and the notch and the insulating cover plate 105 are matched to form a slit 102. A channel (not shown) through which the liquid cooling tube 14 passes is formed in a side wall (first side wall 103) of the insulating frame 104 parallel to yz.

During assembly, the insulating frame 104 may be fixed on top of the large-capacity battery, the transverse plates 342 are located at the slits 102 (see fig. 7), then the electric connector is connected with the pole adapter 3 through the slits 102 (when the transverse plates 342 extend out of the slits 102, the adjacent large-capacity batteries can use the transverse plates 342 of the respective electric connecting components 34 as the electric connector, and the series connection of the two large-capacity batteries is realized through the interconnection of the respective transverse plates 342), and after the pole adapter 3 is glued, the insulating cover plate 105 is fixed at the upper end of the insulating frame 104.

The structure of the insulating frame 104 is optimized in this embodiment, so that the insulating frame can serve as an insulating protective shell and also can serve as an injection mold, and the structure of the insulating frame is shown in fig. 8, 9 and 10.

The insulating frame 104 of this embodiment includes an insulating frame 107 and an insulating bottom plate 108 fixed at any open end of the insulating frame 107, and an electric connection post avoiding hole 1081 corresponding to each pole adaptor 3 is provided on the insulating bottom plate 108, and the electric connection post avoiding hole 1081 should be sized so that the electric connection post 31 on the pole adaptor 3 passes through, and the main body of the pole adaptor cannot pass through.

The partition 1082 is disposed around each electric connection post avoiding hole 1081 to form each pole adaptor accommodating cavity 109, after the insulating frame 104 is fixed at the top of the high-capacity battery, the electric connection posts 31 of each pole adaptor 3 penetrate through the electric connection post avoiding holes 1081, the pole avoiding holes 12 on the top plate 11 of the shell and are connected with each single battery pole 21, and a fourth gap is formed between the side wall of each pole adaptor accommodating cavity 109 parallel to xz and the side surface of each pole adaptor 3 parallel to xz, which is shown in fig. 9. The transverse plate 342 of the electrical connection member 34 is located at the notch of the insulating frame 104; the electrical connection can be better realized based on the electrical connection piece.

Through injecting glue into the glue injecting space through the fourth gap, in this embodiment, insulating sealant is injected into the top surface 36 of the pole adaptor and the accommodating cavity 109 of the pole adaptor, under the blocking of the vertical plate 341 and the outermost partition 1082 of the electrical connection component 34 (as can be seen from the figure, the heights of the four outermost partitions 1082 on the insulating bottom plate 108 are slightly higher than the height of the pole adaptor 3, and the four outermost partitions 1082 are respectively defined as a first partition 112, a second partition 113, a third partition 114 and a fourth partition 115), so that the insulating sealant cannot overflow from the top surface 36 of the pole adaptor; meanwhile, the transverse plate 342 is used as an electric connection part, and the transverse plate 342 is higher than the top surface 36 of the pole adapter piece in the z direction, so that insulating sealing glue liquid cannot appear on the transverse plate 342, and the electric conduction capability of the pole adapter piece 3 is not affected.

When the aperture of the electric connection post avoiding hole 1081 is larger than the outer diameter of the electric connection post 31 of the pole adapter 3, the insulating sealing glue solution can enter the area b from the gap between the electric connection post avoiding hole 1081 and the second gap (as shown in fig. 10), if there is a cold joint between the electric connection post 31 of the pole adapter 3 and each single battery pole 21, when the insulating sealing glue solution enters the area b, the electric conductivity of the pole adapter 3 and each single battery pole 21 can be possibly affected, in order to avoid such problems, the glue consumption is reduced, and the annular glue blocking ring 110 can be additionally arranged at the outer edge of the electric connection post avoiding hole 1081 to avoid the insulating sealing glue solution from flowing into the area b. It should be noted that, the outer edge of the electric connection post avoiding hole 1081 may be the wall of the electric connection post avoiding hole 1081, or may be the bottom plate area of the glue injection space around the electric connection post avoiding hole 1081. As can be seen, the annular rubber ring 110 projects perpendicularly to the floor of the pole adapter receiving chamber 109 in the direction of the insulating cover 105. Meanwhile, in order to cooperate with the annular rubber blocking ring 110, an annular groove 111 is formed in the bottom surface 35 of the pole adapter, and the annular rubber blocking ring 110 can be directly inserted into the annular groove 111.

Example 4

Unlike embodiment 1, the first bearing plate 41 is added to the pole adapter 3 in this embodiment, and in the x direction, the size of the first bearing plate 41 is equal to the size of the pole adapter 3;

as shown in fig. 11, in the present embodiment, a first bearing plate 41 perpendicular to the transverse plate 342 of the electrical connection member 34 of the pole adapter 3 of embodiment 1 is provided on the edge parallel to the x-direction; the first bearing plate 41 is matched with the insulating frame 104, so that the structural stability of the high-capacity battery can be improved.

Example 5

In order to cooperate with the pole adapter assembly in embodiment 4, the structure of the insulating frame 104 is improved on the basis of embodiment 3, and as shown in fig. 12, a second bearing plate 42 adapted to the first bearing plate 41 in embodiment 4 is added. The second bearing plate 42 coplanar with the insulating frame 107 is arranged on the side wall parallel to the xz plane, the second bearing plate 42 and the insulating frame 107 can be integrally arranged, and after the assembly is completed, the first bearing plate 41 and the second bearing plate are abutted, so that the structural stability of the high-capacity battery is improved.

Example 6

Unlike the above-described embodiment, the electrical connection member 34 and the pole adapter 3 of the present embodiment are separate pieces, and the electrical connection member 34 and the pole adapter 3 are equal in size in the x-direction. The structure is shown in fig. 13 and 14:

the pole adapter 3 in this embodiment is the same as the above embodiment, and is not described here again.

The electrical connection member 34 of the present embodiment includes a first electrical connection plate 343, a second electrical connection plate 344, and a third connection plate 345; the third connecting plate 345 is located between the first electric connecting plate 343 and the second electric connecting plate 344, the first electric connecting plate 343 covers and is fixed on the top surface 36 of the pole adapter, and the liquid cooling tube avoiding channel 346 is formed on the surface of the first electric connecting plate 343 and the surface of the pole adapter 3, so that the first electric connecting plate 343 can also play a role of compacting the liquid cooling tube 14 after fixing the first electric connecting plate 343 and the second electric connecting plate. The second electrical connection plate 344 is configured to connect with an external electrical connection (in some cases, the second electrical connection plate 344 may also be used directly as an electrical connection). The third connection plates 345 serve to prevent the insulating sealant from overflowing from a portion of the glue injection region. It should be noted that, the partial glue injection area refers to the top surface of the first electrical connection board 343; since the electrical connection member 34 in this embodiment directly covers the top surface 36 of the pole adapter, when injecting the adhesive, it is necessary to lay insulating sealant on the first electrical connection plate 343 of the electrical connection member 34. Of course, when the insulating sealant is applied to the first electrical connection plate 343, the insulating sealant also penetrates the pole adapter top surface 36.

Example 7

As shown in fig. 15, this embodiment is a large-capacity battery in which the pole adapter assembly of embodiment 6 is provided, and the same electrical connection member 34 is fixed to the pole adapter 3 on the same side; in other embodiments, one electrical connection member 34 may be fixed to each pole adapter 3.

The pole adaptor assembly can be directly injected with glue, so that the insulating sealing glue completely wraps the first electric connection plate 343 and the whole pole adaptor 3, namely, the insulating sealing glue layer with the thickness larger than the sum of the thicknesses (z-direction dimension) of the pole adaptor 3 and the first electric connection plate 343 is paved on the shell top plate 11.

It should be noted that, in the process of injecting the adhesive, it is necessary to ensure that the second electrical connection board 344 extends out of the insulating sealant layer, that is, the second electrical connection board 344 has no insulating sealant.

If the housing top plate 11 is not provided with the gas chamber 9, the housing top plate 11 needs to be provided with openings corresponding to the explosion venting openings of the individual battery cells 2, and the peripheral area of the openings is sealed with the upper cover plate of the battery cell 2. When injecting glue, can set up and keep off glued structure in each battery cell 2 let out and explode mouthful top, prevent that insulating seal glue solution from covering let out and explode mouthful, initiate the incident, after the injecting glue is accomplished, dismantle and keep off glued structure can. In addition, when the top plate 11 of the housing is provided with the gas chamber 9, the gas chamber 9 can be used as a glue blocking structure, as shown in fig. 15.

In the glue injection process, under the blocking of the third connecting plate 345 of the electric connecting component 34 and the gas chamber 9, the insulating sealing glue liquid cannot overflow from the edge of the first electric connecting plate 343 parallel to the x direction; however, the insulating sealant may overflow from the edge parallel to the y direction and may overflow from the top plate 11 of the housing, and therefore, the sealant injection mold needs to be additionally provided to prevent the insulating sealant from overflowing from the edge parallel to the y direction and the top plate 11 of the housing, and the sealant injection mold is removed after the sealant injection is completed.

Example 8

Unlike embodiment 7, in this embodiment, on the basis of embodiment 7, an insulating protective cover 10 is added to the top of the large-capacity battery; on the one hand, potential safety hazards possibly existing when the pole adapter 3 is exposed in the running process of the high-capacity battery can be avoided, the problem that the high-capacity battery is short-circuited due to the fact that some foreign matters in the external environment fall into the position of the pole adapter 3 is also avoided, and the safety of the high-capacity battery is improved; on the other hand, the part of the structure of the insulating protective cover 10 is used as a glue injection mould, so that the glue injection process is simplified, demoulding is not needed after glue injection is completed, and meanwhile, the bonding strength between the insulating protective cover 10 and the top of the large-capacity battery can be improved.

As shown in fig. 16, 17 and 18, the insulating frame 104 in this embodiment is different from that in embodiment 3, the insulating frame 104 in this embodiment includes only an insulating frame 107 (i.e. the region f shown in fig. 16 is a hollowed region, after the assembly is completed, the pole adapter 3 and the first electric connection plate 343 of the electric connection member 34 are located in the region, see fig. 17 and 18), and glue blocking plates 1043 are respectively disposed on the first surfaces 1042 (the surfaces parallel to the xy plane) of the two long frames 1041 of the insulating frame 107, where the glue blocking plates 1043 extend along the x direction, and a third gap (region c shown in fig. 18) is provided between the outer sides 33 of the pole adapter in the y direction. In order to improve the strength of the glue baffle 1043, a reinforcing rib 1044 may be added to the glue baffle 1043.

It should be noted that, the glue blocking plate 1043 should form a slit 102 with the insulating cover 105 to connect the power supply connector with the pole adapter 3, as shown in fig. 18. When the above-described pole adapter 3 to which the electrical connection member 34 is fixed to each of the battery cell poles 21, the second electrical connection plate 344 of the electrical connection member 34 is located at the slit 102; the electrical connection can be better realized based on the electrical connection piece.

It should be noted that if the housing top plate 11 is not provided with the gas chamber 9, a blocking structure may be additionally provided above the explosion venting openings of the individual battery cells 2 to prevent the insulating sealing glue from covering the explosion venting openings to cause safety accidents, and the blocking structure may be detached after the glue injection is completed. In addition, when the top plate 11 of the housing is provided with the gas chamber 9, the gas chamber 9 can be used as a glue blocking structure. Of course, for structural regularity, as shown in fig. 18, baffles 106 parallel to the xz plane may be provided on both sides of the gas chamber 9, and the tips thereof may be flush with the insulating cover 105 or may be integrally provided with the insulating cover 105.

In the embodiment, insulating sealant is poured on the first electric connection plate 343, and the insulating sealant cannot overflow from the surface of the first electric connection plate 343 under the blocking of the third connection plate 345 of the electric connection part 34 and the side wall of the insulating frame 104 parallel to the yz plane; under the blocking of the glue blocking plate 1043, the insulation sealing glue liquid cannot overflow from the top plate 11 of the shell; meanwhile, the second electrical connection plate 344 is used as an electrical connection part, and the second electrical connection plate 344 is higher than the top surface 36 of the pole adapter in the z direction, so that the insulating sealing glue solution is not present on the second electrical connection plate 344, and the conductivity of the pole adapter 3 is not affected.

Example 9

Unlike embodiment 6, the structure of the electrical connection member 34 of this embodiment is as shown in fig. 19:

In addition to the electrical connection member 34 of embodiment 6, an L-shaped electrical connection plate 38 is added, and in the x-direction, the dimension of the L-shaped electrical connection plate 38 is equal to the dimension of the pole adapter 3. The vertical connection plate 39 of the L-shaped electrical connection plate 38 is connected with the second electrical connection plate 344 of the electrical connection member 34 and the transverse connection plate 40 is used for connection with the electrical connection.

Example 10

This embodiment is a large-capacity battery, which is different from embodiment 8 in that the pole adapter assembly of embodiment 9 is provided thereon.

As shown in fig. 20, when the pole adapter 3 to which the electrical connection member 34 of embodiment 9 is fixed to each of the battery cell poles 21, the cross connection plates 40 of the electrical connection member 34 are located at the slits 102; compared with embodiment 8, the electric connector has larger electric connection space, and can better realize electric connection based on the electric connector.

Claims (7)

1. A pole adapter assembly, characterized in that: comprises a pole adapter (3) and an electrical connection part (34) arranged on the pole adapter (3);

The pole adapter (3) is used for being connected with each single battery pole (21), and the pole adapter (3) is provided with a clamping part for installing the liquid cooling pipe (14);

the electrical connection member (34) is adapted to connect with an external electrical connection while preventing the insulating sealant from overflowing the partial glue injection region.

2. The pole adapter assembly of claim 1, wherein: the electric connecting part (34) is an inverted L-shaped plate;

The vertical plate (341) of the inverted L-shaped plate is parallel to the xz plane and is fixed on the top surface (36) of the pole adapter, and is used for preventing the insulating sealant from overflowing from a part of the glue injection area; the partial glue injection area is a pole adapter top surface (36);

The transverse plate (342) of the inverted-L plate is parallel to the xy plane for connection with external electrical connectors or as an electrical connector.

3. The pole adapter assembly of claim 2, wherein: the electric connection part (34) further comprises a first bearing plate (41), wherein the first bearing plate (41) is parallel to the xz plane and fixed on a transverse plate (342) of the inverted L-shaped plate, and extends towards the bottom surface (35) of the pole adapter.

4. The pole adapter assembly of claim 1, wherein: the electric connecting part (34) is a Z-shaped plate and comprises a first electric connecting plate (343), a second electric connecting plate (344) and a third connecting plate (345);

The first electric connection plate (343) is parallel to the xy plane, covers and is fixed on the top surface (36) of the pole adapter; the top surface of the first electric connection plate (343) is used as a part of glue injection area; a liquid cooling pipe avoiding channel (346) is formed on the surface of the first electric connection plate (343) matched with the top surface (36) of the pole adapter;

The third connecting plate (345) is positioned between the first electric connecting plate (343) and the second electric connecting plate (344) and is used for preventing the insulating sealant from overflowing from a part of the glue injection area, wherein the part of the glue injection area is the top surface of the first electric connecting plate (343);

the second electrical connection plate (344) is parallel to the xy-plane for connection with external electrical connections.

5. The pole adapter assembly of claim 4, wherein: the electrical connection part (34) further comprises an L-shaped electrical connection plate (38), a vertical connection plate (39) of the L-shaped electrical connection plate (38) is connected with the second electrical connection plate (344), and a transverse connection plate (40) extends in a direction away from the first electrical connection plate (343) and is used for being connected with an external electrical connection piece or used as an electrical connection piece.

6. The pole adapter assembly of claim 1, wherein: the pole adapter (3) comprises a pole adapter main body and n electric connecting columns (31) which are fixed on the pole adapter main body and protrude out of the pole adapter main body, wherein n is more than or equal to 1;

The pole adapter body is provided with n first holes (43) which are in one-to-one correspondence with the electric connection poles (31), and each electric connection pole (31) is connected with the single battery pole (21) through each first hole (43).

7. The pole adapter assembly of claim 6, wherein: the clamping part is a through groove formed in the pole adapter main body, and the size of the through groove is matched with that of the liquid cooling pipe (14).