CN220272662U - Box assembly of battery and power consumption device with box assembly - Google Patents

Abstract

The utility model discloses a box assembly of a battery, the battery with the box assembly and an electric device, wherein the box assembly comprises: the box body is provided with a fixing hole, and the fixing hole comprises a first hole section with smaller cross-sectional area and a second hole section with larger cross-sectional area; the locating pin, the locating pin includes stiff end and locating end, and the stiff end has first fixed section and second fixed section, and first fixed section and first hole section shape adaptation and cooperation are in first hole section, and the second fixed section and the adaptation of second hole Duan Xingzhuang just cooperate in the second hole section, and the perisporium threaded connection of stiff end and fixed hole, locating end link to each other and lie in one side of the first hole section of second hole Duan Beili with the stiff end, and the locating end is used for the location installation box assembly. According to the box assembly of the battery, the locating pin is fixed on the box through the threaded connection between the fixed end and the peripheral wall of the fixed hole, the structure is simple, the connection is firm and reliable, and the locating effect of the locating pin is better and more reliable.

Description

Box assembly of battery and power consumption device with box assembly

Technical Field

The utility model relates to the technical field of vehicle battery packs, in particular to a box assembly of a battery, the battery with the box assembly and an electric device.

Background

Currently, electric power is generally used in vehicles as a driving energy source, and a battery pack is generally provided in the vehicle to store electric energy and supply electric energy for full vehicle operation. For the convenience of the installation and arrangement of the battery pack in the vehicle, a positioning pin structure is generally arranged on the battery pack for positioning so as to improve the installation precision of the battery pack and the reliability of positioning assembly. However, in the related art, the fixing of the positioning pin and the battery pack is relatively weak and is prone to oblique fracture, so that the use effect of the positioning pin is poor and the reliability is poor.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model aims to provide the box assembly of the battery, which can firmly fix the locating pin and the battery, so that the locating effect of the locating pin is better and more reliable.

The utility model further provides a battery with the box assembly.

The utility model also provides an electric device with the battery.

The case assembly of the battery according to the first aspect of the present utility model includes: the box body is provided with a fixing hole, the fixing hole comprises a first hole section and a second hole section, and the cross-sectional area of the first hole section is smaller than that of the second hole section; the locating pin, the locating pin includes stiff end and locating end, the stiff end has first fixed section and second fixed section, first fixed section with first hole section shape adaptation and cooperate in the first hole section, the second fixed section with second hole Duan Xingzhuang adaptation and cooperate in the second hole section, the stiff end with the perisporium threaded connection of fixed orifices, the locating end with the stiff end links to each other and is located the second hole Duan Beili one side of first hole section, the locating end is used for the location installation the box assembly.

According to the box assembly of the battery, the locating pin and the box are arranged, the box is provided with the fixing hole with the first hole section and the second hole section, the cross-sectional area of the first hole section is smaller than that of the second hole section, the locating pin is provided with the locating end and the fixed end, the fixed end comprises the first fixing section matched with the shape of the first hole section and the second fixing section matched with the second hole Duan Xingzhuang, and the locating pin is fixed on the box through threaded connection of the fixed end and the peripheral wall of the fixing hole, so that the structure is simple, the connection is firm and reliable, and the locating effect of the locating pin is better and more reliable.

In addition, the case assembly of the battery according to the present utility model may have the following additional technical features:

in some embodiments of the utility model, the outer surface of the first fixing section is formed with an external thread, and the first fixing section is in threaded connection with the peripheral wall of the first hole section through the external thread.

According to the embodiment, the external thread is formed on the outer surface of the first fixing section and is in threaded connection with the peripheral wall of the first hole section, so that the structure is simple, and the connection is convenient and firm.

In one embodiment of the present utility model, the fixing hole is a blind hole, and a gap is formed between an end surface of the first fixing section away from the second fixing section and a bottom wall of the first hole section.

According to the embodiment, the fixing holes are formed into the blind holes, and the fixing holes are formed in the box body, so that the structural integrity of the blind holes is better due to the fact that the fixing holes are formed into the blind holes, and therefore the fixing device has better connection strength, and the fixing pin is firmer and more reliable when being connected and fixed with the fixing holes. The gap is arranged between the end face of the first fixing section and the bottom wall of the first hole section, so that the axial dimension errors of the first fixing section and the first hole section during processing and manufacturing can be reduced, the first fixing section can be reliably and tightly screwed and fixed with the peripheral wall of the first hole section, the end face of one end, connected with the first fixing section, of the second fixing section can be firmly abutted against the step surface, the connection strength and stability of the fixing end and the fixing hole are further improved, and the locating pin and the box body are more firmly connected.

In some examples of the utility model, a spacing between the end face of the first fixed section and a bottom wall of the first bore section is 3mm or more.

According to the embodiment, the distance between the end face of the first fixing section and the bottom wall of the first hole section is limited, so that enough distance is reserved between the end face of the first fixing section and the bottom wall of the first hole section, the first fixing section can be reliably screwed with the peripheral wall of the first hole section, and the connection and fixation of the locating pin and the box body are stable and reliable.

In one embodiment of the utility model, the first fixed section is cylindrical in shape and the length of the first fixed section is greater than the diameter of the first fixed section.

From this, set up cylindric with first stiff end, simple structure, be convenient for with first hole section screw-thread fit, the length of first stiff end sets up to be greater than the diameter of first fixed section, can make first fixed section have sufficient length to make the surface of first fixed section and the perisporium of first hole section have longer spiro union face in the axial, make first fixed section and first hole section be connected fixedly more reliably.

In some embodiments of the utility model, a surface of the second securing section is adhesively attached to a wall of the second bore section.

According to the embodiment, the surface of the second fixing section is bonded and connected with the wall surface of the second hole section, so that the connection strength of the fixing end and the fixing hole is further improved, and the locating pin and the box body are firmly and reliably connected and fixed.

In one embodiment of the utility model, the depth of the second hole section is 5mm or more.

The depth of the second hole section is limited, the second fixing section and the second hole section can have good connection fixing length in the axial direction, so that the second fixing end and the second hole section are matched and fixed more stably and reliably, the fixing end and the fixing hole have better connection strength, the locating pin and the box body are connected and fixed more firmly and stably, the probability of deflection or fracture of the locating pin is further reduced, and the locating pin has better and more reliable effect when assembled and positioned with the box body and a vehicle.

In some embodiments of the utility model, the first aperture segment and the second aperture Duan Tongzhou are arranged.

According to the embodiment, the first hole section and the second hole Duan Tongzhou are arranged, the fixed end and the fixed hole are simple in structure and convenient to machine and form, the integral structure of the first fixed section and the integral structure of the second fixed section are more coordinated, the structural strength is good, and the fixed end and the fixed hole are connected and fixed more stably and reliably.

In some embodiments of the utility model, the positioning end comprises a guiding section and a mating section, the guiding section being connected at a side of the mating section facing away from the fixed end, at least part of the guiding section decreasing in cross-sectional dimension in a direction from the mating section to the guiding section.

According to the embodiment, the guide section and the matching section are arranged at the positioning end, the matching section can be matched and positioned with the positioning hole structure in the vehicle, the cross section of the guide section is at least partially reduced along the direction from the matching section to the guide section, and when the positioning assembly is carried out, one end of the guide section with smaller cross section is more conveniently and easily inserted into and matched with the positioning hole, and then the positioning pin can be rapidly positioned and inserted into the positioning hole, so that the battery is more rapidly and conveniently positioned and fixed in the vehicle.

In some embodiments of the present utility model, the case includes a horizontally disposed frame, an inner side of the frame defining a receiving chamber for receiving the battery cell, and the fixing hole is formed on the frame.

According to the embodiment, the fixing holes are formed in the frame, so that the fixing holes have better connection strength, and the locating pins and the box body are fixed more firmly and reliably.

In one embodiment of the utility model, the frame has a cavity located below the fixing hole, the upper end of the fixing hole penetrating through the upper surface of the frame, and the bottom wall of the fixing hole being spaced apart from the top wall of the cavity.

According to the embodiment, the fixing holes are formed in the upper surface of the frame, the bottom wall of the fixing holes is spaced from the top wall of the cavity, so that the box body is convenient to process and manufacture, the locating pin and the box body are more convenient and reliable in assembly and fixation, and the locating pin is not easy to skew or break.

In one embodiment of the utility model, the frame is in a rectangular frame structure, the number of the fixing holes is a plurality of, the fixing holes are formed on two sides of the frame in the length direction and/or the width direction, and the number of the positioning pins is a plurality of and corresponds to the fixing holes one by one.

According to the embodiment, the locating pins are arranged through the plurality of fixing holes and the locating holes in one-to-one correspondence, so that when the box body is located and assembled with the vehicle, the locating is more accurate and reliable, the stress transmission paths on the locating pins can be more due to the fact that the locating pins are located and fixed, and therefore the box body and the vehicle are connected and located more stably to a certain extent, and the probability that the locating pins are inclined or broken is further reduced.

In some examples of the present utility model, the number of the fixing holes is two, the two fixing holes are formed on both sides of the frame in the width direction, respectively, and the two fixing holes are staggered in the length direction of the frame.

The quantity of the fixing holes is set to be two, so that the box body and the vehicle have good positioning and mounting effects during positioning and assembly, the quantity of the positioning pins is less, the positioning pins and the box body are connected and fixed conveniently and rapidly, and when the box body and the vehicle are mounted and positioned, the positioning pins are less, so that the positioning connection is faster and more efficient, and the assembly efficiency of the battery and the vehicle is higher. The two fixing holes are staggered in the length direction of the frame, so that the locating pins can better locate and install different positions of the box body when the box body and the vehicle are installed and positioned, and the installation and locating effects are better and more accurate.

In one example of the utility model, the two fixing holes are arranged rotationally symmetrically about a center point of the frame in a horizontal plane.

Therefore, the two locating pins are consistent in arrangement position of the box body and far in distance, so that the locating pins can accurately locate the box body in the vehicle, a fool-proof effect can be achieved to a certain extent, the locating pins can still be stably and smoothly matched with the matched locating holes in the vehicle when the battery arrangement direction is wrong, and structural damage of the locating pins and the box body is reduced.

The battery according to the second aspect of the utility model includes the case assembly of the battery according to the first aspect of the utility model.

According to the battery disclosed by the utility model, the positioning pin and the box body are arranged through the box body assembly of the battery in the first aspect, the box body is provided with the fixing hole with the first hole section and the second hole section, the cross section area of the first hole section is smaller than that of the second hole section, the positioning pin is provided with the positioning end and the fixed end, the fixed end comprises the first fixing section matched with the shape of the first hole section and the second fixing section matched with the second hole Duan Xingzhuang, and the positioning pin is fixed on the box body through the threaded connection of the fixed end and the peripheral wall of the fixing hole.

The electricity consumption device according to the third aspect of the utility model comprises a battery according to the second aspect of the utility model.

According to the electric device, the battery in the second aspect is arranged, the locating pin and the box body are arranged, the box body is provided with the fixing hole with the first hole section and the second hole section, the cross section area of the first hole section is smaller than that of the second hole section, the locating pin is provided with the locating end and the fixed end, the fixed end comprises the first fixing section matched with the shape of the first hole section and the second fixing section matched with the second hole Duan Xingzhuang, the locating pin is fixedly arranged on the box body through the threaded connection of the fixed end and the peripheral wall of the fixing hole, the structure is simple, the connection is firm and reliable, the breakage or the skew is not easy to occur, and the locating effect of the locating pin is better and more reliable.

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

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

FIG. 2 is a schematic illustration of a tank assembly according to an embodiment of the present utility model;

FIG. 3 is an exploded view of a portion of a tank assembly according to an embodiment of the present utility model;

FIG. 4 is a partial cross-sectional view of a tank assembly according to an embodiment of the present utility model;

fig. 5 is a schematic view of the frame shown in fig. 4.

Reference numerals:

10. a positioning pin;

11. a fixed end; 111. a first fixed section; 112. a second fixed section;

12. a positioning end; 121. a mating section; 122. a guide section;

20. a case; 201. a cavity;

21. a frame; 211. a fixing hole; 2111. a first bore section; 2112. a second bore section; 30. structural adhesive;

100. a box assembly;

1000. a battery; 2000. a controller; 3000. a motor;

10000. and (5) an electric device.

Detailed Description

Embodiments of the technical scheme of the present utility model will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and thus are merely examples, and are not intended to limit the scope of the present utility model.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model; the terms "comprising" and "having" and any variations thereof in the description of the utility model and the claims and the description of the drawings above are intended to cover a non-exclusive inclusion.

In the description of embodiments of the present utility model, the technical terms "first," "second," and the like are used merely to distinguish between different objects and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, a particular order or a primary or secondary relationship. In the description of the embodiments of the present utility model, the meaning of "plurality" is two or more unless explicitly defined otherwise.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the utility model. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

In the description of the embodiments of the present utility model, the term "and/or" is merely an association relationship describing an association object, and indicates that three relationships may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

In describing embodiments of the present utility model, the term "plurality" refers to more than two (including two).

In the description of the embodiments of the present utility model, the orientation or positional relationship indicated by the technical terms "center", "length", "width", "up", "down", "front", "rear", "left", "right", "horizontal", "top", "bottom", "inside", "outside", "axial", etc. are orientation or positional relationship based on the drawings, merely for convenience of describing the embodiments of the present utility model and for simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus are not to be construed as limiting the embodiments of the present utility model.

In the description of the embodiments of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like should be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; or may be mechanically or electrically connected; 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 embodiments of the present utility model will be understood by those of ordinary skill in the art according to specific circumstances.

Currently, the application of power batteries is more widespread from the development of market situation. The power battery is not only applied to energy storage power supply systems such as hydraulic power, firepower, wind power and solar power stations, but also widely applied to electric vehicles such as electric bicycles, electric motorcycles, electric automobiles and the like, and various fields such as aerospace and the like. With the continuous expansion of the application field of the power battery, the market demand of the power battery is also continuously expanding.

When the battery is installed in the vehicle, for convenient installation and positioning, the locating pin is fixed on the box body of the battery, and then the battery and the locating pin are moved to the installation position of the vehicle together, and the locating pin is matched with the locating hole arranged at the installation position, so that the position of the battery can be well positioned, and after the matching of the locating pin and the locating hole is completed, the position of the battery can be accurately positioned at the installation position, thus the installation and positioning of the battery are very convenient and the positioning is accurate, and the assembly efficiency of assembly personnel is improved.

When the locating pin is fixedly installed with the box body of the battery, the locating pin is fixedly fastened on a single-layer section bar of the box body through bolts and screw thread threaded clamps, and connection and fixation are relatively weak.

Based on the above consideration, in order to connect and fix the positioning pin 10 with the box 20 more stably and reliably, the utility model designs the box assembly 100 of the battery 1000, and the fixing hole 211 is arranged on the box 20, the fixing hole 211 is provided with a first hole section 2111 and a second hole section 2112, the cross section area of the first hole section 2111 is smaller than that of the second hole section 2112, one end of the positioning pin 10 is fixedly connected with the first hole section 2111 and the second hole section 2112 of the fixing hole 211 in a matching way, so that the positioning pin 10 is fixed with the box 20 more stably and reliably, and the positioning effect and reliability of the positioning pin 10 during installation and positioning are improved.

The box assembly 100 of the battery 1000 disclosed in the embodiment of the utility model is used for installing and positioning the battery 1000, the battery 1000 can be used as an electric device 10000 of a power supply, or various energy storage systems using the battery 1000 as an energy storage element, and the electric device 10000 can be, but is not limited to, a mobile phone, a tablet, a notebook computer, an electric toy, an electric tool, a battery car, an electric car, a ship, a spacecraft and the like. Among them, the electric toy may include fixed or mobile electric toys, such as game machines, electric car toys, electric ship toys, electric plane toys, and the like, and the spacecraft may include planes, rockets, space planes, and spacecraft, and the like.

For convenience of description, the following embodiment will take an electric device 10000 according to an embodiment of the present utility model as an example of a vehicle.

Referring to fig. 1, fig. 1 is a schematic structural view of a vehicle according to some embodiments of the present utility model. The vehicle can be a fuel oil vehicle, a fuel gas vehicle or a new energy vehicle, and the new energy vehicle can be a pure electric vehicle, a hybrid electric vehicle or a range-extended vehicle and the like. The battery 1000 is provided in the interior of the vehicle, and the battery 1000 may be provided at the bottom or the head or the tail of the vehicle. The battery 1000 may be used for power supply of a vehicle, for example, the battery 1000 may be used as an operating power source of the vehicle. The vehicle may also include a controller 2000 and a motor 3000, the controller 2000 being configured to control the battery 1000 to power the motor 3000, for example, for operating power requirements during start-up, navigation and travel of the vehicle.

In some embodiments of the utility model, battery 1000 may be used not only as an operating power source for a vehicle, but also as a driving power source for a vehicle to provide driving power for the vehicle instead of or in part instead of fuel oil or natural gas.

In the present utility model, the battery 1000 refers to a single physical module including one or more battery cells to provide higher voltage and capacity. For example, the battery 1000 referred to in the present utility model may include a battery module, a battery pack, or the like.

A case assembly 100 of a battery 1000 according to an embodiment of the first aspect of the present utility model is described below with reference to fig. 2 to 5. FIG. 2 is a schematic illustration of a tank assembly 100 according to an embodiment of the present utility model; an exploded view of a portion of the tank assembly 100 according to an embodiment of the present utility model; FIG. 4 is a partial cross-sectional view of a tank assembly 100 according to an embodiment of the present utility model; fig. 5 is a schematic view of the frame 21 shown in fig. 4.

Referring to fig. 2 and 5, a case assembly 100 of a battery 1000 according to an embodiment of the first aspect of the present utility model includes: the case 20 and the positioning pin 10, specifically, the case 20 is formed with a fixing hole 211, the fixing hole 211 includes a first hole section 2111 and a second hole section 2112, and the cross-sectional area of the first hole section 2111 is smaller than the cross-sectional area of the second hole section 2112; the positioning pin 10 comprises a fixed end 11 and a positioning end 12, wherein the fixed end 11 is provided with a first fixed section 111 and a second fixed section 112, the first fixed section 111 is matched with the first hole section 2111 in shape, the second fixed section 112 is matched with the second hole section 2112 in shape, the fixed end 11 is in threaded connection with the peripheral wall of the fixed hole 211, the positioning end 12 is connected with the fixed end 11 and is positioned on one side, away from the first hole section 2111, of the second hole section 2112, and the positioning end 12 is used for positioning and mounting the box assembly 100.

The case 20 is used for sealing and accommodating one or more battery cells, one or more battery modules and electrical components in the battery 1000, so as to reduce the possibility of damage to the battery cells, the battery modules or the electrical components caused by external environment or external pressure, and the case 20 can effectively prevent liquid or other foreign matters from affecting the charging or discharging of the battery cells. The case 20 has sufficient dustproof and waterproof performance, thermal protection performance, good structural strength and structural rigidity to satisfy protection of various electric components and battery cells in the battery 1000, and the case 20 can be made of metal, plastic or composite materials, such as aluminum alloy, aluminum plate and plastic composite, carbon fiber composite, foamed aluminum, etc.

The shape and size of the case 20 may be determined according to the actual installation and accommodation requirements.

The locating pin 10 is used for fixing the box 20 in a vehicle, the length of the locating pin 10 can be reasonably set according to the installation and location requirements of the box 20, and the locating pin 10 can be made of materials with good strength and rigidity performance, such as alloy steel, carbon steel and the like.

The first hole section 2111 and the second hole section 2112 may be round holes, square holes and holes with other shapes, the hole walls of the first hole section 2111 and the second hole section 2112 may be smooth wall surfaces, or may be wall surfaces with sliding grooves, threads and the like, the shapes of the first hole section 2111 and the second hole section 2112 may be correspondingly set according to the first fixing section 111 and the second fixing section 112 of the locating pin 10, so that the first hole section 2111 may be matched with the first fixing section 111 in shape, the second hole section 2112 may be matched with the second fixing section 112 in shape, the shape matching may include matching of size and contact surfaces, for example, when the first fixing section 111 is cylindrical and the peripheral surface is smooth, the first fixing hole 211 is correspondingly formed with a smooth peripheral wall, and the size of the end surface and the peripheral side wall surface of the first fixing section 111 may be matched with the size of the hole diameter and the hole wall of the first fixing hole 211.

In this embodiment, the fixing hole 211 is formed in the case 20, the fixing end 11 is formed on the positioning pin 10, the fixing end 11 is fixed in cooperation with the fixing hole 211, specifically, when the positioning pin 10 is assembled on the case 20, the fixing end 11 of the positioning pin 10 is connected with the peripheral wall of the fixing hole 211 by threads, so that the first fixing section 111 is fixed in the first hole section 2111, and the second fixing section 112 is fixed in the second hole section 2112, thereby connecting and fixing the positioning pin 10 on the case 20, and the positioning pin 10 can be stably and firmly connected with the case 20 by adopting a threaded connection mode, so that the assembly and disassembly of the positioning pin 10 and the case 20 are convenient.

The fixed hole 211 is provided with a first hole section 2111 and a second hole section 2112, the cross-sectional area of the first hole section 2111 is smaller than that of the second hole section 2112, the first hole section 2111 can be matched with the second hole section 2112 to form a stepped hole, after the locating pin 10 is connected with the box 20, one end of the second fixed section 112 connected with the first fixed section 111 can be abutted with a stepped surface formed by the first hole section 2111 and the second hole section 2112, so that the second fixed section 112 is connected with the second hole section 2112 more firmly and tightly.

The positioning end 12 is connected to the fixed end 11 and is located at a side of the second hole section 2112 facing away from the first hole section 2111, that is, the positioning end 12 is connected to the second fixed section 112 of the fixed end 11, the first fixed section 111 facing away from the positioning end 12 is connected to the second fixed section 112, and since the cross-sectional area of the first hole section 2111 is smaller than that of the second hole section 2112, the cross-sectional area of the first fixed section 111 is correspondingly smaller than that of the second hole section 2112, and when the positioning end 12 is connected to the fixed end 11, the positioning end 12 is connected to the second fixed section 112 having a larger cross-sectional area, and the second fixed section 112 is connected to the first fixed section 111 having a smaller cross-sectional area.

Since the positioning end 12 is used for positioning the mounting of the tank assembly 100, the positioning end 12 needs to be provided outside the tank 20 to be cooperatively positioned when the tank assembly 100 is assembled in a vehicle. Thus, when the positioning pin 10 is assembled and fixed with the box 20, the first fixing section 111 of the positioning pin 10 can conveniently pass through the second hole section 2112 to be matched and fixed with the first hole section 2111, the second fixing section 112 is matched and fixed with the second hole section 2112, the positioning end 12 and the fixing end 11 form a cantilever structure on the box 20, the fixing end 11 needs to bear external acting force applied to the positioning end 12 during matched positioning, and when the connection between the positioning pin 10 and the box 20 is not firm and stable, the positioning pin 10 is easy to break at the connecting part.

In this embodiment, the fixing end 11 is in threaded connection with the peripheral wall of the fixing hole 211 of the box 20, so that the connection is stable and firm, and the second hole section 2112 and the first hole section 2111 cooperate to achieve the effect of cladding and fixing the first fixing section 111 and the second fixing section 112 of the fixing end 11, so that the reducing position where the first fixing section 111 and the second fixing section 112 are connected is clad in the fixing hole 211, thereby well improving the connection strength of the positioning pin 10 and the box 20.

According to the box assembly 100 of the battery 1000 in the embodiment of the utility model, the locating pin 10 and the box 20 are arranged, the box 20 is provided with the fixing hole 211 with the first hole section 2111 and the second hole section 2112, the cross section area of the first hole section 2111 is smaller than that of the second hole section 2112, the locating pin 10 is provided with the locating end 12 and the fixing end 11, the fixing end 11 comprises the first fixing section 111 matched with the shape of the first hole section 2111 and the second fixing section 112 matched with the shape of the second hole section 2112, and the locating pin 10 is fixed on the box 20 through the threaded connection of the fixing end 11 and the peripheral wall of the fixing hole 211.

In some embodiments of the present utility model, as shown in fig. 2, the case 20 may include a horizontally disposed frame 21, the inside of the frame 21 defining a receiving chamber for receiving the battery cell, and fixing holes 211 formed in the frame 21.

The frame 21 forms the main structure of the box 20, the frame 21 provides mounting and fixing positions for various electrical elements, parts and the like in the battery 1000, the protection effect and the structural strength of the box 20 are improved, the structural shape of the frame 21 can be correspondingly adjusted and changed according to the arrangement design requirement of the box 20, the frame 21 can be manufactured by adopting profile processing so as to realize the light design requirement, and the profile can be prepared by adopting aluminum alloy materials with higher strength and lower density, other composite materials and the like.

In this embodiment, the fixing hole 211 is formed on the frame 21, so that the fixing hole 211 has better connection strength, and the fixing pin 10 and the case 20 are fixed more firmly and reliably.

In one embodiment of the present utility model, referring to fig. 2 and 4, the frame 21 may have a cavity 201, the cavity 201 being located at a lower side of the fixing hole 211, an upper end of the fixing hole 211 penetrating an upper surface of the frame 21, and a bottom wall of the fixing hole 211 being spaced apart from a top wall of the cavity 201.

Alternatively, the mold cavities 201 may be provided in plural, and the plural mold cavities 201 are formed in a rib structure of the frame 21 therebetween.

When the positioning pin 10 is fixedly connected with the box 20, the fixed end 11 of the positioning pin 10 is fixed with the upper end of the frame 21 through the fixing hole 211, the positioning end 12 of the positioning pin 10 extends upwards, and the positioning pin 10 is integrally positioned and installed from the lower side of the vehicle after being fixedly connected with the box 20.

It will be understood that, in the related art, when the positioning pin 10 is fixedly mounted to the case 20, one end of the positioning pin 10 is generally inserted into the case 20 along the height direction (up-down direction as shown in fig. 2) of the case 20, the case 20 has a plurality of cavities 201 in the height direction of the case 20, one end of the positioning pin 10 inserted into the bottom of the case 20 abuts against the upper side of the lowermost profile and is provided with a threaded hole, the positioning pin 10 is fixedly screwed to the case 20 through the threaded hole from the bottom of the case 20 by a bolt, so that the positioning pin 10 is fixed to the case 20, and when the battery 1000 is of a structure having a double-layer battery module or the height of the battery 1000 is high, the positioning pin 10 needs to be correspondingly sized to maintain a good positioning effect, so that the cantilever structure formed from the fixing position of the positioning pin 10 to the case 20 of the other end of the battery 1000 is long, the reliability of the connection fixing of the positioning pin 10 to the case 20 is further reduced, and at the same time, the positioning pin 10 and the case 20 need to be fixed by an assembler from the bottom of the case 20.

The locating pin 10 wears to establish box 20 along the direction of height of box 20, need process in advance and be suitable for a plurality of perforation that locating pin 10 worn to establish on the box 20, because the deviation such as size and axiality can inevitably appear in the course of working, after locating pin 10 is fixed with box 20 bottom connection, locating pin 10 wears to establish the part of box 20 and appears crooked condition under the effect of perforation easily, when making battery 1000 install the location in the vehicle, locating pin 10 breaks under the effect of external force more easily and influences normal installation location, especially when battery 1000 is the structure that has double-deck battery 1000 module or battery 1000's height is higher, locating pin 10 wears to establish more in the part of box 20, locating pin 10 appears crooked or the condition of fracture more easily.

In this embodiment, the upper end of the fixing hole 211 penetrates through the upper surface of the frame 21, and the bottom of the fixing hole 211 is spaced from the top wall of the cavity 201, and the fixing hole 211 is disposed at the upper end of the frame 21, so that the fixing of the positioning pin 10 and the box 20 is more convenient in assembly, the positioning pin 10 is not fixed through the box 20 in the height direction, the length of the positioning pin 10 can be greatly shortened, especially when the battery 1000 is provided with a double-layer battery module or the box 20 is higher, the length of the cantilever structure formed by the positioning pin 10 and the box 20 can be greatly reduced, the connection strength required by the positioning pin 10 and the box 20 in connection fixation is reduced to a certain extent, so that the assembly fixation of the positioning pin 10 and the box 20 is more convenient and reliable, the positioning pin 10 is not easy to skew or break, and the positioning effect and the use reliability of the positioning pin 10 are improved.

The fixing hole 211 is formed at the upper end of the frame 21, so that the structure is simple, the machining amount of the box body 20 is small, and the machining and manufacturing are convenient.

In this embodiment, the fixing hole 211 is formed on the upper surface of the frame 21, and the bottom wall of the fixing hole 211 is spaced from the top wall of the cavity 201, so that the processing and manufacturing of the box 20 are convenient, the positioning pin 10 and the box 20 are more convenient and reliable in assembly and fixation, and the positioning pin 10 is not easy to skew or break.

In one embodiment of the present utility model, as shown in fig. 2, the frame 21 has a rectangular frame structure, the number of the fixing holes 211 may be plural, the plural fixing holes 211 are formed on both sides of the frame 21 in a length direction (a front-rear direction as shown in fig. 2) and/or a width direction (a left-right direction as shown in fig. 2), and the number of the positioning pins 10 is plural and corresponds to the plural fixing holes 211 one by one.

For example, two, three, four, five, six, etc. fixing holes 211 may be provided, and two, three, four, five, six, etc. fixing holes 211 and the number of fixing pins 10 may be reasonably set according to actual positioning requirements and positioning effects. The fixing holes 211 may be formed on two sides of the frame 21 in the length direction, the fixing holes 211 may be formed on two sides of the frame 21 in the width direction, the fixing holes 211 may be formed on two sides of the frame 21 in the length direction and the width direction, and the fixing holes 211 may be arranged on the frame 21 in a reasonable manner according to positioning requirements and actual assembly requirements.

In this embodiment, when the box 20 and the vehicle are positioned and assembled by setting the plurality of fixing holes 211 and the positioning pins 10 corresponding to the fixing holes 211 one by one, the positioning is more accurate and reliable, and the plurality of positioning pins 10 can be positioned and fixed to enable more force transmission paths on the positioning pins 10, so that the connection and positioning of the box 20 and the vehicle are more stable to a certain extent and the probability of the positioning pins 10 being skewed or broken is further reduced.

In some examples of the present utility model, as shown with reference to fig. 2, the number of the fixing holes 211 may be two, the two fixing holes 211 are formed on both sides of the frame 21 in the width direction, respectively, and the two fixing holes 211 are staggered in the length direction of the frame 21.

The offset arrangement means that the connecting line direction of the two fixing holes 211 is not parallel or perpendicular to the length direction of the frame 21, and the fixing holes 211 may be formed on both sides of the frame 21 in the width direction when the fixing holes 211 are arranged on the frame 21, or the fixing holes 211 may be formed on both sides of the frame 21 in the length direction.

The number of the fixing holes 211 is two, so that the box body 20 and the vehicle have good positioning and mounting effects during positioning and assembly, the number of the positioning pins 10 is small, the positioning pins 10 and the box body 20 are connected and fixed conveniently and rapidly, and when the box body 20 and the vehicle are mounted and positioned, the positioning connection is faster and more efficient due to the small number of the positioning pins 10, so that the assembly efficiency of the battery 1000 and the vehicle is higher. The two fixing holes 211 are staggered in the length direction of the frame 21, so that the locating pin 10 can better locate and install different positions of the box 20 when the box 20 and the vehicle are installed and located, and the installation and locating effects are better and more accurate.

In one example of the present utility model, as shown in fig. 2, the two fixing holes 211 may be rotationally symmetrically arranged about a center point of the frame 21 in a horizontal plane.

The two fixing holes 211 are rotationally symmetrically arranged about a center point of the frame 21 in a horizontal plane, and rotationally symmetrical means that after the frame 21 rotates 180 degrees around the center point in the horizontal plane, the position of any one fixing hole 211 is respectively overlapped with the position of the other fixing hole 211 before rotation, when the battery 1000 is assembled with the vehicle, the box 20 can be placed and adjusted to a proper orientation, the two locating pins 10 are respectively located and assembled with corresponding locating holes in the vehicle, and when the orientation of the box 20 in the horizontal plane is reversed, the two locating pins 10 can still be well located and assembled with the locating holes matched with the vehicle.

The two fixing holes 211 are rotationally symmetrically arranged about the central point of the frame 21 in the horizontal plane, so that the two positioning pins 10 are relatively consistent in arrangement position of the box body 20 and are far apart, the positioning pins 10 can accurately position the box body 20 in a vehicle, and meanwhile, the foolproof effect can be achieved to a certain extent, and the positioning assembly of the box body 20 is facilitated.

In some embodiments of the utility model, the outer surface of the first fixing section 111 may be formed with external threads, by which the first fixing section 111 is screwed with the circumferential wall of the first hole section 2111.

The external thread may be a triangular thread, a trapezoidal thread, a rectangular thread or an arc thread, and may have a single or multiple spiral lines, for example, the outer surface of the first fixing section 111 may be formed as a rectangular thread of a single spiral line, and the structural form of the external thread may be reasonably selected according to the actual connection fixing requirement, which is not particularly limited herein.

In this embodiment, the external thread is formed on the outer surface of the first fixing section 111 and is in threaded connection with the peripheral wall of the first hole section 2111, so that the structure is simple, and the connection is convenient and firm.

In one embodiment of the present utility model, referring to fig. 4 and 5, the fixing hole 211 may be a blind hole, and a gap is formed between an end surface of the first fixing section 111 remote from the second fixing section 112 and a bottom wall of the first hole section 2111.

For example, as shown in fig. 4, the first fixing section 111 of the positioning pin 10 is fitted into the first hole section 2111, and a gap exists between the bottom end surface of the first fixing section 111 and the bottom wall surface of the first hole section 2111.

In this embodiment, the fixing hole 211 is a blind hole, and since the fixing hole 211 is formed on the case 20, the fixing hole 211 is set as a blind hole, so that the structural integrity of the blind hole is better, and thus, the connecting strength is better, and the fixing pin 10 and the fixing hole 211 are more firmly and reliably connected and fixed. The gap is arranged between the end face of the first fixing section 111 and the bottom wall of the first hole section 2111, so that the axial dimension errors of the first fixing section 111 and the first hole section 2111 during processing and manufacturing can be reduced, the first fixing section 111 can be reliably and tightly screwed and fixed with the peripheral wall of the first hole section 2111, the end face of one end, connected with the first fixing section 111, of the second fixing section 112 can be firmly abutted against the step face, the connection strength and stability of the fixing end 11 and the fixing hole 211 are further improved, and the positioning pin 10 and the box 20 are more firmly connected.

In some examples of the utility model, the spacing between the end face of the first securing section 111 and the bottom wall of the first bore section 2111 may be 3mm or more.

For example, the spacing between the end face of the first securing section 111 and the bottom wall of the first bore section 2111 may be 3mm, 4mm, 5mm, 6mm, etc.

In this embodiment, by defining the space between the end surface of the first fixing section 111 and the bottom wall of the first hole section 2111, a sufficient space is provided between the end surface of the first fixing section 111 and the bottom wall of the first hole section 2111 to enable the first fixing section 111 to be reliably screwed with the peripheral wall of the first hole section 2111, so that the connection and fixation of the positioning pin 10 and the case 20 are more stable and reliable.

In one embodiment of the present utility model, as shown in fig. 3 and 4, the first fixing section 111 may have a cylindrical shape, and the length of the first fixing section 111 may be greater than the diameter of the first fixing section 111.

Referring to fig. 4, the first fixing section 111 has a rectangular cross-sectional shape, the wide side of the rectangle represents the diameter of the first fixing section 111, the long side of the rectangle represents the length of the first fixing section 111, and the length of the first fixing section 111 is greater than the diameter of the first fixing section 111.

Therefore, the first fixing section 111 is cylindrical, is simple in structure and is convenient to be in threaded fit with the first hole section 2111, the length of the first fixing section 111 is set to be larger than the diameter of the first fixing section 111, and the first fixing section 111 can be made to be long enough, so that the outer surface of the first fixing section 111 and the peripheral wall of the first hole section 2111 are made to have longer threaded connection faces in the axial direction, and the first fixing section 111 and the first hole section 2111 are connected and fixed more reliably.

In some embodiments of the utility model, as shown with reference to fig. 3 and 4, the surface of the second securing section 112 may be adhesively attached to the wall of the second bore section 2112.

The surface of the second fixing section 112 may include an outer surface, the surface of the second fixing section 112 may also include an end surface abutting the bottom wall of the second hole section 2112, and the surface of the second fixing section 112 may also include an outer surface and an end surface abutting the bottom wall of the second hole section 2112. The surface of the second fastening section 112 may be adhesively attached to the wall of the second hole section 2112 by means of the structural adhesive 30. Optionally, the structural adhesive 30 is coated on the bottom wall surface of the second hole section 2112, and the end surface of the second fixing section 112 and the bottom wall surface are adhered and fixed by the structural adhesive 30. Alternatively, the structural adhesive 30 may be an anaerobic adhesive.

In this embodiment, the surface of the second fixing section 112 is adhered to the wall surface of the second hole section 2112, so as to further improve the connection strength between the fixing end 11 and the fixing hole 211, and make the connection and fixation between the positioning pin 10 and the box 20 more firm and reliable.

In one embodiment of the utility model, the depth of the second hole section 2112 may be 5mm or more.

For example, the second hole section 2112 may have a depth of 5mm, 6mm, 7mm, 8mm, 9mm, etc.

The depth of the second hole section 2112 is limited in this embodiment, so that the second fixing section 112 and the second hole section 2112 have good connection fixing length in the axial direction, so that the second fixing section 112 and the second hole section 2112 are matched and fixed more stably and reliably, the fixing end 11 and the fixing hole 211 have better connection strength, so that the connection and fixation of the positioning pin 10 and the box 20 are more firm and stable, the probability of skew or fracture of the positioning pin 10 is further reduced, and the positioning pin 10 has better and more reliable effect in assembling and positioning the box 20 and a vehicle.

In some embodiments of the utility model, as shown in fig. 4, the first and second bore sections 2111, 2112 may be coaxially arranged.

The first hole section 2111 and the second hole section 2112 are coaxially arranged, the first fixing section 111 and the second fixing section 112 of the fixing end 11 are correspondingly coaxially arranged, when the fixing end 11 is fixedly connected with the fixing hole 211, the first fixing section 111 and the second fixing section 112 can be relatively conveniently and respectively fixed in the first hole section 2111 and the second hole section 2112 in a matched mode, and in the screwing process of the first fixing section 111 and the first hole section 2111, the second fixing section 112 can follow the rotation of the first fixing section 111 to gradually move towards the bottom wall of the second hole section 2112 along the axial direction of the second hole section 2112, and meanwhile, the outer surface of the second fixing section 112 can be always in a good matched state with the peripheral wall of the second hole section 2112.

In this embodiment, the first hole section 2111 and the second hole section 2112 are coaxially arranged, the fixed end 11 and the fixed hole 211 have simple structure and convenient processing and forming, and the integral structure of the first fixed section 111 and the second fixed section 112 is more coordinated and consistent, so that the structural strength is better, and the fixed end 11 and the fixed hole 211 are connected and fixed more stably and reliably.

In some embodiments of the present utility model, as shown in fig. 4, the positioning end 12 may include a guide section 122 and a mating section 121, the guide section 122 being connected to a side of the mating section 121 facing away from the fixed end 11, at least a portion of the guide section 122 decreasing in cross-sectional size in a direction from the mating section 121 to the guide section 122.

The positioning pin 10 sequentially comprises a guide section 122, a matching section 121, a second fixing section 112 and a first fixing section 111 in the direction from the guide section 122 to the first fixing section 111, when the positioning pin 10 is assembled and fixed with the box 20, the bottom wall of the second hole section 2112 is coated with structural adhesive 30, the first fixing section 111 of the positioning pin 10 stretches into the opening of the second hole section 2112 and is screwed with the first hole section 2111, so that the second fixing section 112 gradually moves into the second hole section 2112 and is connected with the second hole section 2112 in a matched manner, the second fixing section 112 and the second hole section 2112 are fixedly bonded through the structural adhesive 30, the matching section 121 is connected with the second fixing section 112 and extends away from the fixing hole 211 along the axial direction of the fixing end 11, and the guide section 122 is connected with the matching section 121 and extends away from the matching section 121 along the axial direction of the fixing end 11.

In this embodiment, the guide section 122 and the mating section 121 are disposed at the positioning end 12, the mating section 121 can be mated with the positioning hole structure in the vehicle for positioning, the guide section 122 is at least partially reduced in the direction from the mating section 121 to the guide section 122, and when the positioning assembly is performed, the end of the guide section 122 with smaller cross section is more conveniently and easily plugged into the positioning hole, so that the positioning pin 10 can be quickly plugged into the positioning hole, thereby enabling the positioning of the battery 1000 in the vehicle to be more rapid and convenient.

In one embodiment of the present utility model, referring to fig. 3 and 4, the fitting section 121 may have a cylindrical shape, the second fixing section 112 has a cylindrical shape, and the fitting section 121 is coaxially arranged with the second fixing section 112 and has the same diameter.

As shown with reference to fig. 3 and 4, the diameter of the fitting section 121 is the same as that of the second fixing section 112, and in the axial direction of the positioning pin 10, the positioning pin 10 may be fitted to the outer peripheral surface of the second fixing section 112 at the outer peripheral surface of the fitting section 121 to form a smooth surface.

In this way, the transition between the matching section 121 and the second fixing section 112 at the connecting position is smoother, the variable cross-section structure is reduced, and the matching section 121 and the second fixing section 112 keep the same structure, so that the force transmission between the matching section 121 and the second fixing section 112 is more stable, and the fixing hole 211 can have better connecting and fixing effects on the second fixing section 112 and the matching section 121 outside the fixing hole 211.

In some examples of the present utility model, referring to fig. 3 and 4, the guide section 122 may be formed with a screwing part having a polygonal column shape.

For example, the screw portion may be formed with a triangular prism, a quadrangular prism, a pentagonal prism, a hexagonal prism, a heptagonal prism, or the like.

Thus, the screwing part is formed on the guide section 122, so that the screwing operation can be conveniently performed by clamping or sleeving a tool on the screwing part when the positioning pin 10 and the fixing hole 211 are screwed and fixed, and the positioning pin 10 and the box 20 can be conveniently installed and fixed.

A battery 1000 according to an embodiment of the second aspect of the present utility model is described below with reference to fig. 2 to 5.

Referring to fig. 2 to 5, a battery 1000 according to an embodiment of the present utility model includes a case assembly 100 of the battery 1000 according to an embodiment of the first aspect of the present utility model.

Other constructions and operations of the battery 1000 according to the embodiment of the present utility model are known to those of ordinary skill in the art, and will not be described in detail herein.

According to the battery 1000 of the embodiment of the present utility model, by providing the case assembly 100 of the battery 1000 of the first embodiment, the positioning pin 10 and the case 20 are provided, the case 20 is provided with the fixing hole 211 having the first hole section 2111 and the second hole section 2112, the cross-sectional area of the first hole section 2111 is smaller than that of the second hole section 2112, the positioning pin 10 is provided with the positioning end 12 and the fixing end 11, the fixing end 11 includes the first fixing section 111 adapted to the shape of the first hole section 2111 and the second fixing section 112 adapted to the shape of the second hole section 2112, and the positioning pin 10 is fixed on the case 20 through the threaded connection of the fixing end 11 and the peripheral wall of the fixing hole 211, so that the connection is simple, firm and reliable, the fracture or the skew is not easy to occur, and the positioning effect of the positioning pin 10 is better and more reliable.

An electrical device 10000 according to an embodiment of the third aspect of the present utility model is described below with reference to fig. 1 to 5.

Referring to fig. 1, an electric device 10000 according to an embodiment of the present utility model includes a battery 1000 according to an embodiment of the second aspect of the present utility model.

Other configurations and operations of the power utilization device 10000 according to the embodiment of the present utility model are known to those skilled in the art, and will not be described in detail herein.

According to the power utilization device 10000 of the embodiment of the present utility model, by providing the battery 1000 of the embodiment of the first aspect, providing the positioning pin 10 and the case 20, the case 20 is provided with the fixing hole 211 having the first hole section 2111 and the second hole section 2112, the cross-sectional area of the first hole section 2111 is smaller than the cross-sectional area of the second hole section 2112, the positioning pin 10 is provided with the positioning end 12 and the fixing end 11, the fixing end 11 includes the first fixing section 111 adapted to the shape of the first hole section 2111 and the second fixing section 112 adapted to the shape of the second hole section 2112, and the positioning pin 10 is fixed on the case 20 through the threaded connection of the fixing end 11 and the peripheral wall of the fixing hole 211, so that the structure is simple, the connection is firm and reliable, the fracture or the skew is not easy to occur, and the positioning effect of the positioning pin 10 is better and more reliable.

An electrical device 10000 according to a specific embodiment of the present utility model will be described below with reference to fig. 1 to 5.

As shown in fig. 1 to 5, an electric device 10000 according to a third aspect of the present utility model, the electric device 10000 being a vehicle, the electric device 10000 including a battery 1000 according to a second aspect of the present utility model, the battery 1000 being for supplying or storing electric energy.

The battery 1000 comprises a locating pin 10 and a box body 20, the box body 20 is provided with a frame 21, the frame 21 is of a rectangular frame body structure, fixing holes 211 are formed in the upper end of the frame 21, two fixing holes 211 are formed and are arranged in a rotationally symmetrical mode relative to the central point of the frame 21 in a horizontal plane, a cavity 201 is defined on the inner side of the frame 21, the cavity 201 is provided with three reinforcing rib structures, and the frame 21 is formed between the two cavities 201.

The positioning pin 10 comprises a positioning end 12 and a fixed end 11, the positioning end 12 is provided with a guide section 122 and a matching section 121, one end of the guide section 122 is connected with one end of the matching section 121, the other end of the guide section 122 extends away from the matching section 121 along the axial direction of the positioning pin 10, the cross section of the guide section 122 is gradually reduced in the extending direction, and a hexagonal prism structure is further formed on the guide section 122; the fixed end 11 comprises a first fixed section 111 and a second fixed section 112, the first fixed section 111, the second fixed section 112 and the matching section 121 are all cylindrical and coaxially arranged, one end of the second fixed section 112 is connected with the other end of the matching section 121, the diameters of the second fixed section 112 and the second fixed section 111 are the same, the other end of the first fixed section 111 is connected with the first fixed section 111, the other end of the first fixed section 111 extends away from the second fixed section 112 along the axial direction of the locating pin 10, the diameter of the first fixed section 111 is smaller than that of the second fixed section 112, and external threads are formed on the outer surface of the first fixed section 111.

The fixing hole 211 is a blind hole, the fixing hole 211 includes a first hole section 2111 and a second hole section 2112, the second hole section 2112 penetrates through the upper surface of the frame 21, the second hole section 2112 extends along the axis of the first hole section 2111 and is formed at the bottom wall of the second hole section 2112, and the first hole section 2111 and the second hole section 2112 are coaxially arranged. The first fixing section 111 is in threaded connection with the first hole section 2111, the end face of one end of the second fixing section 112 connected with the first fixing section 111 is in adhesive connection with the bottom wall of the second hole section 2112 through the structural adhesive 30, and the second fixing section 112 is fixedly connected in the second hole section 2112 and is matched with the second hole section 2112 in shape.

According to the power utilization device 10000 of the embodiment of the present utility model, by providing the battery 1000 of the embodiment of the first aspect, providing the positioning pin 10 and the case 20, the case 20 is provided with the fixing hole 211 having the first hole section 2111 and the second hole section 2112, the cross-sectional area of the first hole section 2111 is smaller than the cross-sectional area of the second hole section 2112, the positioning pin 10 is provided with the positioning end 12 and the fixing end 11, the fixing end 11 includes the first fixing section 111 adapted to the shape of the first hole section 2111 and the second fixing section 112 adapted to the shape of the second hole section 2112, and the positioning pin 10 is fixed on the case 20 through the threaded connection of the fixing end 11 and the peripheral wall of the fixing hole 211, so that the structure is simple, the connection is firm and reliable, the fracture or the skew is not easy to occur, and the positioning effect of the positioning pin 10 is better and more reliable.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model, and are intended to be included within the scope of the appended claims and description. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present utility model is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims (16)

1. A battery case assembly, comprising:

the box body (20), a fixing hole (211) is formed on the box body (20), the fixing hole (211) comprises a first hole section (2111) and a second hole section (2112), and the cross-sectional area of the first hole section (2111) is smaller than that of the second hole section (2112);

Locating pin (10), locating pin (10) include stiff end (11) and locating end (12), stiff end (11) have first fixed section (111) and second fixed section (112), first fixed section (111) with first hole section (2111) shape adaptation and cooperate in first hole section (2111), second fixed section (112) with second hole section (2112) shape adaptation and cooperate in second hole section (2112), stiff end (11) with perisporium threaded connection of fixed hole (211), locating end (12) with stiff end (11) link to each other and are located second hole section (2112) deviates from one side of first hole section (2111), locating end (12) are used for the location to install box (20) assembly.

2. The battery case assembly according to claim 1, wherein an outer surface of the first fixing section (111) is formed with an external thread, and the first fixing section (111) is screwed with a peripheral wall of the first hole section (2111) through the external thread.

3. The battery case assembly according to claim 2, wherein the fixing hole (211) is a blind hole, and a gap is provided between an end surface of the first fixing section (111) away from the second fixing section (112) and a bottom wall of the first hole section (2111).

4. A case assembly of a battery according to claim 3, wherein a distance between the end face of the first fixing section (111) and a bottom wall of the first hole section (2111) is 3mm or more.

5. The battery case assembly according to claim 2, wherein the first fixing section (111) is cylindrical in shape, and a length of the first fixing section (111) is greater than a diameter of the first fixing section (111).

6. The battery case assembly according to any one of claims 1 to 5, wherein a surface of the second fixing section (112) is adhesively connected to a wall surface of the second hole section (2112).

7. The battery case assembly according to claim 6, wherein the depth of the second hole section (2112) is 5mm or more.

8. The battery case assembly of claim 1, wherein the first hole section (2111) and the second hole section (2112) are coaxially arranged.

9. The battery housing assembly according to claim 1, wherein the positioning end (12) comprises a guiding section (122) and a mating section (121), the guiding section (122) being connected to a side of the mating section (121) facing away from the fixed end (11), at least part of the guiding section (122) decreasing in cross-sectional dimension in a direction from the mating section (121) to the guiding section (122).

10. The battery case assembly according to claim 1, wherein the case (20) includes a horizontally disposed frame (21), an inner side of the frame (21) defining a receiving chamber for receiving a battery cell, and the fixing hole (211) is formed on the frame (21).

11. The battery case assembly according to claim 10, wherein the frame (21) has a cavity (201), the cavity (201) is located at a lower side of the fixing hole (211), an upper end of the fixing hole (211) penetrates through an upper surface of the frame (21), and a bottom wall of the fixing hole (211) is spaced apart from a top wall of the cavity (201).

12. The battery case assembly according to claim 10 or 11, wherein the frame (21) has a rectangular frame structure, the number of the fixing holes (211) is plural, the plurality of the fixing holes (211) are formed on both sides of the frame (21) in the length direction and/or the width direction, and the number of the positioning pins (10) is plural and corresponds to the plurality of the fixing holes (211) one by one.

13. The battery case assembly according to claim 12, wherein the number of the fixing holes (211) is two, the two fixing holes (211) are formed on both sides of the frame (21) in the width direction, respectively, and the two fixing holes (211) are staggered in the length direction of the frame (21).

14. The battery case assembly according to claim 13, wherein two of the fixing holes (211) are arranged rotationally symmetrically about a center point of the frame (21) in a horizontal plane.

15. A battery characterized by a housing assembly comprising a battery according to any one of claims 1-14.

16. An electrical device comprising a battery according to claim 15.