CN209071422U

CN209071422U - Battery pack

Info

Publication number: CN209071422U
Application number: CN201821884017.8U
Authority: CN
Inventors: 阮生甡
Original assignee: Contemporary Amperex Technology Co Ltd
Current assignee: Contemporary Amperex Technology Co Ltd
Priority date: 2018-11-15
Filing date: 2018-11-15
Publication date: 2019-07-05
Anticipated expiration: 2028-11-15

Abstract

The utility model relates to a kind of battery pack, battery pack includes: cabinet；Lid is covered on cabinet；Cell assembly is set in the enclosure space of cabinet and lid composition；End assemblies, including panel and the more than two connectors being fixed on panel, cell assembly is electrically connected by connector with the device outside enclosure space, and panel and cabinet or lid are tightly connected, and are fixedly connected by bracket with cabinet.Battery pack provided by the utility model, by the way that End assemblies are fixed on cabinet by the End assemblies for being integrated with more than two connectors by bracket, the weight of connector is undertaken by bracket, it is not easily to fall off, the probability for pullling caused seal failure due to connector self weight is reduced, the sealing reliability and safety of battery pack are improved.

Description

Battery pack

Technical field

The utility model relates to power battery technology fields, more particularly to a kind of battery pack.

Background technique

With environmental consciousness enhancing and low-carbon economy it is in the ascendant, new-energy automobile will become future automobile industry Mainstream.It reduces vehicle to be highly advantageous for reducing vehicle running resistance, to save traveling energy consumption.But reduce the premise of vehicle height It is the passability and comfort that cannot influence vehicle, so reduced height greatly will be to reduce the whole of power battery Body height, the mode for the energy density for promoting power battery are realized.

In the prior art, the various connectors of power battery are typically secured on shell, when battery pack is by greater impact When, connector is possible to directly to fall off from shell, causes the electrical connection circuit of battery that short circuit occurs, or even cause thing on fire Therefore.In addition, connector has constant weight, in the long-term use, connector and shell will cause due to vibration etc. Between seal failure.

Utility model content

The purpose of the utility model embodiment is to provide a kind of battery pack, the safety of the battery pack and sealing reliability compared with It is high.

The utility model embodiment provides a kind of battery pack, which includes: cabinet；Lid is covered on cabinet；Electricity Pond aggregate is set in the enclosure space of cabinet and lid composition；End assemblies, including panel and be fixed on panel two A above connector, cell assembly are electrically connected by connector with the device outside enclosure space, panel and cabinet or lid It is tightly connected, and is fixedly connected by bracket with cabinet.

According to the one aspect of the utility model embodiment, bracket includes pedestal and the first fixation being set on pedestal Portion, the first fixed part are connect with panel, and pedestal is connect with cabinet.

According to the one aspect of the utility model embodiment, the first fixed part is tilted by a predetermined angle θ relative to perpendicular Setting, and the first fixed part and pedestal) angle be 90 ° of-θ.

According to the one aspect of the utility model embodiment, the first mounting hole, the first installation are provided on the first fixed part The side in hole is provided with weight loss groove, and panel is provided with pillar close to the side of the first fixed part, and panel protrudes into loss of weight by pillar It is connect in slot and with the first fixed part.

According to the one aspect of the utility model embodiment, the second fixed part is further provided on pedestal, second is fixed Intersect with the first fixed part in portion.

First fixed part is further provided with direction on the first fixed part according to the one aspect of the utility model embodiment The support column that panel extends, support column are used to support panel.

According to the one aspect of the utility model embodiment, support column includes the first support column and the second support column, and first Support column is arranged far from pedestal, and the second support column is arranged close to pedestal, and the first support column is against to panel, the top of the second support column Hold extending panel, and the side support panels by connecting with top.

According to the one aspect of the utility model embodiment, bracket further includes the second fixed part, and the second fixed part is set to On pedestal, and intersect with the first fixed part.

According to the one aspect of the utility model embodiment, battery pack further comprises the electricity being electrically connected with cell assembly Cell monitoring unit, the second mounting hole is provided on the second fixed part, and the second fixed part passes through the second mounting hole and battery cell monitoring list Member connection.

According to the one aspect of the utility model embodiment, through-hole, the week of through-hole are further provided on the second fixed part Side is provided with the protection edge outwardly protruded, and the harness of multiple connectors is passed through from through-hole.

According to the one aspect of the utility model embodiment, it is provided with mounting portion in cabinet, third peace is provided on pedestal Hole is filled, pedestal is connected by the mounting portion of third mounting hole and cabinet.

According to the one aspect of the utility model embodiment, mounting portion be provided with corresponding to third mounting hole positioning column and Threaded hole, positioning column protrude into third mounting hole, and threaded hole is connect with the fastener for passing through third mounting hole.It is practical new according to this The one aspect of type embodiment, the quantity of bracket are at least two, are provided with anti-striker between bracket.

According to the one aspect of the utility model embodiment, window is provided on lid, connector passes through window and is located at envelope It closes outside space, panel is tightly connected by window and lid.

Battery pack provided by the embodiment of the utility model, by passing through the End assemblies for being integrated with more than two connectors Bracket is fixed on cabinet, and the weight of connector is undertaken by bracket, not easily to fall off, is reduced since pullling for connector self weight is led The probability of the seal failure of cause improves the sealing reliability and safety of battery pack.

Detailed description of the invention

The feature, advantage and technical effect of the utility model exemplary embodiment described below with reference to the accompanying drawings.

Fig. 1 is a kind of decomposition texture schematic diagram of battery pack provided by the embodiment of the utility model；

Fig. 2 is the structural schematic diagram after battery pack assembling shown in FIG. 1

Fig. 3 is the decomposition texture schematic diagram of the End assemblies and bracket in battery pack shown in FIG. 1；

Fig. 4 is the structural schematic diagram of the bracket in End assemblies shown in Fig. 3；

Fig. 5 is projection view of the bracket shown in Fig. 4 along direction A；

Fig. 6 is projection view of the bracket shown in Fig. 4 along direction B；

Fig. 7 is the assembling effect schematic diagram of End assemblies and bracket shown in FIG. 1.

Wherein:

1- cabinet；

The first accommodating chamber of 11-；

12- mounting portion；

121- positioning column；

122- threaded hole；

2- lid；

The second accommodating chamber of 21-；

22- window；

3- cell assembly；

4- End assemblies；

41- panel；

42- connector；

43- pillar；

5- bracket；

51- pedestal；

511- third mounting hole；

The first fixed part of 52-；

The first mounting hole of 521-；

522- weight loss groove；

θ-predetermined angular；

523- support column；

The first support column of 523a-；

The second support column of 523b-；

The second fixed part of 53-；

The second mounting hole of 531-；

532- through-hole；

533- protection edge；

6- battery monitoring unit；

The anti-striker of 7-.

In the accompanying drawings, identical component uses identical appended drawing reference.The attached drawing is not drawn according to the actual ratio.

Specific embodiment

The feature and exemplary embodiment of the various aspects of the utility model is described more fully below.It is retouched in detail in following In stating, many details are proposed, in order to provide the comprehensive understanding to the utility model.But for those skilled in the art It will be apparent that the utility model can be implemented in the case where not needing some details in these details for member. Below the description of embodiment is used for the purpose of providing by showing the example of the utility model to the more preferable of the utility model Understanding.In the the accompanying drawings and the following description, at least part of known features and technology are not shown, to avoid to this reality Unnecessary obscure is caused with novel；Also, for clarity, may be exaggerated the size of part-structure.In addition, hereinafter being retouched Feature, the structure or characteristic stated can be incorporated in any suitable manner in one or more embodiments.

The noun of locality of middle appearance described below is direction shown in figure, is not the specific structure to the utility model It is defined.In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term " is pacified Dress ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, be also possible to detachable connection, or be integrally connected； It can be directly connected, can also be indirectly connected.For the ordinary skill in the art, on visual concrete condition understands State the concrete meaning of term in the present invention.In addition, term " first ", " second " are used for description purposes only, and cannot manage Solution is indication or suggestion relative importance or the quantity for implicitly indicating indicated technical characteristic.Define as a result, " first ", The feature of " second " can explicitly or implicitly include at least one of the features.

The utility model in order to better understand, below with reference to Fig. 1 to Fig. 7 to the battery pack of the utility model embodiment into Row detailed description.

Also referring to Fig. 1 and Fig. 2, the utility model embodiment provides a kind of battery pack comprising: cabinet 1, lid 2, cell assembly 3 and End assemblies 4.

Cabinet 1 has the first accommodating chamber 11, and lid 2 is covered on cabinet 1, and lid 2 has the second accommodating chamber 21, batteries integrated Body 3 is set in the first accommodating chamber 11 and the enclosure space of the second accommodating chamber 21 composition.

End assemblies 4 include panel 41 and the more than two connectors 42 being fixed on panel 41, and cell assembly 3 passes through Connector 42 is electrically connected with the device outside enclosure space, for example, another battery pack perhaps high-voltage cage panel 41 and cabinet 1 or Lid 2 is tightly connected, and is fixedly connected by bracket 5 with cabinet 1.

Battery pack generally comprises but is not limited to following several connectors: for realizing cell assembly 3 electrical connection just Extra-high voltage connector and cathode high-tension connector, the low pressure detected to operating voltage, temperature of cell assembly 3 etc. input Connector and low pressure out connector, and the heating input connector and heating out connector of heating cell assembly 3, separately It outside, further include the safety components such as manual maintenance switch, explosion-proof valve.

End assemblies 4 in the utility model embodiment, which integrate above-mentioned various connectors and safety component, is fixed on one On panel 41, not needing to open up a variety of openings on cabinet 1 or lid 2, structure is simple, without increasing extra sealing element, Improve the sealing reliability of End assemblies 4 and cabinet 1 or lid 2；If an independent connector or safety component are close Panel 41 or corresponding sealing element are only replaced in envelope failure, easy to operate, advantageously reduce maintenance cost.

Since End assemblies 4 are fixed on cabinet 1 by bracket 5, bracket 5 plays support and firm work to End assemblies 4 With can fall off from cabinet 1 or lid 2 to avoid connector 42 when battery pack is by greater impact.

Battery pack provided by the embodiment of the utility model, by the End assemblies 4 that will be integrated with more than two connectors 42 It being fixed on cabinet 1 by bracket 5, the weight of connector is undertaken by bracket 5, and it is not easily to fall off, it reduces due to connector 42 certainly The probability for pullling caused seal failure of weight, improves the sealing reliability and safety of battery pack.

Connector 42 is bruised or falls off when battery pack is by greater impact in order to prevent, can be by End assemblies 4 It is fixed on the side of battery pack, the top without being fixed on battery pack, moreover it is possible to reduce the whole height of battery pack.

Specifically, the side of lid 2 is provided with window 22, and connector 42 passes through window 22 and is located at outside enclosure space, panel 41 cover window 22 from the side of the second accommodating chamber 21, and panel 41 is tightly connected by window 22 and lid 2.When assembling, battery Aggregate 3 is fixed on cabinet 1, after End assemblies 4 are assembled into cabinet 1 by bracket 5, connector and safety on End assemblies 4 After component passes through the window 22 of lid 2, lid 2 is covered on again on cabinet 1, is tightly connected the two by fastener, sealing ring Afterwards, it then will be tightly connected between the panel 41 and lid 2 of End assemblies 4, such as sealing be set between window 22 and panel 41 Circle, re-coating sealant etc..

In addition, generally being manufactured using metal material since cabinet 1 needs to carry the weight of cell assembly 3, this is practical new End assemblies 4 in type embodiment are fixed on cabinet 1 by bracket 5, and End assemblies 4 are located in the second accommodating chamber 21, then Reduce the Structural strength calls of lid 2, lid 2 only needs to meet seal request, therefore lid 2 can using density compared with Small nonmetallic materials manufacture, such as plastics or light composite material etc., make the density of material of cabinet 1 be greater than the material of lid 2 Density is expected, to alleviate the weight of battery pack.

On this basis, the cabinet 1 of metal material manufacture its height while meeting bearing requirements can be designed to the greatest extent May be small, and the height of the lid 2 of density lesser material manufacture can design it is relatively higher so that the second accommodating chamber 21 Depth be greater than the depth of the first accommodating chamber 11 and be conducive to promote battery pack to further mitigate the weight of battery pack Energy density.

The specific structure of battery pack provided by the embodiment of the utility model is described in further detail with reference to the accompanying drawing.

Also referring to Fig. 3 to Fig. 7, as previously mentioned, End assemblies 4 integrate above-mentioned various connectors 42 and safety component It is fixed on a panel 41, and is fixed on cabinet 1 by bracket 5.The quantity of bracket 5 can be two, respectively correspond and set It is placed in the two sides of panel 41.

Bracket 5 includes pedestal 51 and the first fixed part 52 being set on pedestal 51, and the first fixed part 52 connects with panel 41 It connects, pedestal 51 is connect with cabinet 1.

Specifically, the first mounting hole 521 is provided on the first fixed part 52, the side of the first mounting hole 521, which is provided with, to be subtracted Baking soda 522, as shown in figure 4, panel 41 is provided with pillar 43 close to the side of the first fixed part 52, panel 41 is stretched by pillar 43 Enter in weight loss groove 522 and is connect with the first fixed part 52.Threaded hole can be set on pillar 43, fastener passes through the first mounting hole 521 are fixed in the threaded hole of pillar 43.Weight loss groove 522 is arranged in the side of first mounting hole 521, has both alleviated the weight of bracket 5 Amount, while also increasing the structural strength of bracket 5.Certainly, weight loss groove 522 can also be set to other positions of the first fixed part 52 It sets, as long as shown in figure 5, not influencing the structural strength of first fixed part 52.

As an alternative embodiment, 521 quantity of the first mounting hole can be also correspondingly arranged on panel 41 to be multiple Multiple pillars 43, some of pillars 43 are connected with corresponding first mounting hole 521 by fastener, and other pillar 43 is not With setting threaded hole, and its length is slightly longer, can protrude into remaining first mounting hole 521 or weight loss groove 522, such panel 41 and first are mutually embedded between fixed part 52 by fastener or pillar 43, so as in End assemblies 4 because being shaken When moving, impacting, prevent from producing relative rotation between panel 41 and the first fixed part 52, to improve panel 41 and the first fixed part 52 The reliability of connection.

Further, the first fixed part 52 is tilted by a predetermined angle θ setting relative to perpendicular, and the first fixed part 52 Angle with pedestal 51 is 90 ° of-θ, as shown in Figure 6.First fixed part 52 relative to pedestal 51 tilt, foreign impacts power act on to When the first fixed part 52, certain buffer function can be played, prevents the Joint failure between the first fixed part 52 and pedestal 51 Even it is broken.In addition, End assemblies 4 are set to the side of lid 2, panel 41 is located in the second accommodating chamber 21 of lid 2, face Plate 41 determines the height of lid 2 in the height of vertical direction.It is greater than the length of right-angle side according to the length of hypotenuse The principle of degree can also reduce panel 41 in the height of vertical direction, and then reduce battery pack if panel 41 is obliquely installed Whole height is conducive to the energy density for further promoting battery pack.

In addition, being additionally provided with the support column 523 extended towards panel 41 on the first fixed part 52, support column 523 is for branch Support panel 41.

Specifically, support column 523 includes the first support column 523a being arranged far from pedestal 51, the number of the first support column 523a It is multiple for measuring, and multiple first support column 523a are arranged at intervals on the first fixed part 52, and the first support column 523a can be cylinder Body, or other shapes of cylinder, the first support column 523a against to panel 41, thus be vibrated in End assemblies 4, Both when impact causes fastener to loosen, prevent from generating relative motion between panel 41 and the first fixed part 52, further increase The reliability of connection.

Since bracket 5 with panel 41 other than fixing, to be also fixed on cabinet 1, therefore the height of bracket 5 is slightly above panel 41 height.Support column 523 further includes that the second support column 523b, the second support column 523b is arranged close to pedestal 51 as a result, and second The top extending panel 41 of support column 523b, and the side support panels 41 by being connect with top, as shown in Figure 7.End group There is the connector 42 being arranged on part 4 certain weight to be made by making full use of the assembly space between bracket 5 and panel 41 Second support column 523b plays the role of Auxiliary support End assemblies 4, the maximization of space utilization rate is realized as much as possible, into one Step improves the reliability connected between End assemblies 4 and bracket 5.

Referring again to Fig. 3 and Fig. 4, bracket 5 further includes the second fixed part 53, and the second fixed part 53 is set on pedestal 51, And intersect with the first fixed part 52.Preferably, the second fixed part 53 is arranged perpendicular to pedestal 51 and the first fixed part 52, so that the One end of two fixed parts 53 is connected to pedestal 51, and the other end is connected to the first fixed part 52, forms stable triangle between three Structural body improves the stability of bracket 5.

It is arranged it is further preferred that pedestal 51, the first fixed part 52 can be integrally formed with the second fixed part 53 to constitute Bracket 5, bracket 5 can for example, by but be not limited to the mode of die casting and manufacture.

In addition, battery pack further comprises the battery monitoring unit 6 being electrically connected with cell assembly 3, the second fixed part 53 On be provided with the second mounting hole 531, the second fixed part 53 is connect by the second mounting hole 531 with battery monitoring unit 6.Second peace Filling hole 531 can be threaded hole, or through-hole is provided with corresponding mounting hole on battery monitoring unit 6, passes through fastener Battery monitoring unit 6 is fixed to the second fixed part 53.

Further, it is provided with mounting portion 12 in cabinet 1, third mounting hole 511 is provided on pedestal 51, pedestal 51 passes through Third mounting hole 511 is connect with the mounting portion 12 of cabinet 1.

Specifically, multiple third mounting holes 511 can be set on pedestal 51, mounting portion 12 is provided with pacifies corresponding to third Fill the positioning column 121 and threaded hole 122 in hole 511, positioning column 121 protrudes into third mounting hole 511, threaded hole 122 with pass through the The fastener of three mounting holes 511 connects.As shown in Figure 2 and Figure 7, three third mounting holes 511 can be set on pedestal 51, install Two threaded holes 122 are arranged in portion 12 and a positioning column 112, a positioning column 112 protrude into a third mounting hole 511, and two A threaded hole 122 connects one to one with the fastener for passing through two third mounting holes 511, and both pedestal 51 and mounting portion 12 are mutually Mutually it is embedded in, thus prevent from producing relative rotation between pedestal 51 and mounting portion 12 when End assemblies 4 are because being vibrated, impacting, And then improve the reliability that pedestal 51 is connect with the mounting portion 12 of cabinet 1.

In addition, battery monitoring unit 6 has the heater elements such as capacitor, in order to avoid thermal runaway phenomenon, battery cell monitoring occurs The heat that unit 6 generates is transmitted in outside air by two kinds of sinking paths.A kind of sinking path is transmitted by bracket 5 The metal material manufacture that can select thermal coefficient high to cabinet 1, battery monitoring unit 6, bracket 5 and cabinet 1.In order to improve Heat dissipation effect can increase the contact area between pedestal 51 and the mounting portion 12 of cabinet 1, heat dissipation also can be set on cabinet 1 Fin etc., to be transferred heat in outside air by cabinet 1.Another sinking path is bracket 5 and End assemblies 4 Panel 41 contact, and the connector 42 on panel 41 is set to except enclosure space, convection current can be generated with outside air, from And heat can be transmitted to the connector 41 of End assemblies 4 by bracket 5, then be diffused into outside air.Battery monitoring unit 6 By bracket 5 heat is transmitted to cabinet 1 and End assemblies 4 respectively, increases whole thermal capacitance, improve heat dissipation effect.

In addition, since bracket 5 has the structure type of stable triangle structural body, and the first fixed part 52 of bracket 5 Between the panel 41 of End assemblies 4, between pedestal 51 and the mounting portion 12 of cabinet 1, the second fixed part 53 and battery cell monitoring list It is connected by fastener between member 6, so that each component can independently be dismounted by tool, improves assembly and disassembly just Victory and feasibility.

Referring again to Fig. 3 and Fig. 6, each connector 42 and safety component of End assemblies 4, which have, draws harness, for example, just Extra-high voltage connector and cathode high-tension connector needs are electrically connected with cell assembly 3, low pressure input connector and low pressure output Connector needs are electrically connected with battery monitoring unit 6, heat input connector and heating out connector needs and batteries integrated Electrical connection of body 3 etc..In order to arrange harness, wiring error is prevented, the solidus structure such as harness clips can be set on panel 42, by harness Taxonomic revision is good.In addition, being further provided with through-hole 532 on the second fixed part 53, the side of through-hole 532, which is provided with, to be outwardly protruded Protection edge 533.Harness after arrangement can be passed through from through-hole 532, and be electrically connected with corresponding component.Protection edge 533 can be with Prevent harness from improving the reliability of harness by the edge abrasion of through-hole 532.In addition, protection edge 533 is relative to the second fixed part 53 It is protruded with the mounting surface of battery monitoring unit 6, limited support can be played the role of when installing battery monitoring unit 6, it can be with Avoid the cutting harness of battery monitoring unit 6.

In addition, being additionally provided with anti-striker 7 between bracket 5, guide groove can be set in anti-striker 7, for guiding each connection The wire harness of device can also be arranged some avoiding structures in anti-striker 7, avoid harness outlet, harness clips of connector etc., prevent Striker 7 can be fixed between bracket 5, battery monitoring unit 6 and panel 41 by way of bonding or fastener fastening, with The harness of protection End assemblies 4 such as is worn, pulls at the damage.

Battery pack provided by the embodiment of the utility model as a result, by being designed as bracket 5 with stable triangle structure End assemblies 4 can reliablely and stablely be fixed on cabinet 1, and make full use of space utilization rate by the structure type of body, will prop up First fixed part 52 of frame 5 is obliquely installed relative to perpendicular, to further decrease the whole height of battery pack；In addition, logical Crossing bracket 5 can be efficiently transferred to the heat that battery monitoring unit 6 generates in outside air, improve the reliable of battery pack Property, and then improve the overall stability of battery pack.The whole height of battery pack is advantageously reduced, total weight is mitigated, meanwhile, drop Low maintenance cost is conducive to the energy density for promoting battery pack

Although the present utility model has been described by reference to the preferred embodiments, but in the model for not departing from the utility model In the case where enclosing, various improvement can be carried out to it and can replace component therein with equivalent.Especially, as long as not depositing In structural conflict, items technical characteristic mentioned in the various embodiments be can be combined in any way.The utility model It is not limited to specific embodiment disclosed herein, but is included all technical solutions falling within the scope of the claims.

Claims

1. a kind of battery pack, wherein the battery pack includes:

Cabinet (1)；

Lid (2) is covered on the cabinet (1)；

Cell assembly (3) is set in the enclosure space of the cabinet (1) and the lid (2) composition；

End assemblies (4), including panel (41) and the more than two connectors (42) being fixed on the panel (41), the electricity Pond aggregate (3) is electrically connected by the connector (42) with the device outside the enclosure space, the panel (41) with it is described Cabinet (1) or the lid (2) are tightly connected, and are fixedly connected by bracket (5) with the cabinet (1).

2. battery pack according to claim 1, which is characterized in that the bracket (5) includes pedestal (51) and is set to institute The first fixed part (52) on pedestal (51) is stated, first fixed part (52) connect with the panel (41), the pedestal (51) it is connect with the cabinet (1).

3. battery pack according to claim 2, which is characterized in that first fixed part (52) is inclined relative to perpendicular Oblique predetermined angle theta setting, and first fixed part (52) and the angle of the pedestal (51) they are 90 ° of-θ.

4. battery pack according to claim 2 or 3, which is characterized in that be provided with first on first fixed part (52) The side of mounting hole (521), first mounting hole (521) is provided with weight loss groove (522), and the panel (41) is close to described the The side of one fixed part (52) is provided with pillar (43), and the panel (41) protrudes into the weight loss groove by the pillar (43) (522) it is connect in and with first fixed part (52).

5. battery pack according to claim 2, which is characterized in that be further provided with court on first fixed part (52) The support column (523) extended to the panel (41), the support column (523) are used to support the panel (41).

6. battery pack according to claim 5, which is characterized in that the support column (523) includes the first support column (523a) and the second support column (523b), first support column (523a) are arranged far from the pedestal (51), and described second Dagger (523b) is arranged close to the pedestal (51), and first support column (523a) is against to the panel (41), and described the The panel (41), and panel described in the side supports by connecting with the top are stretched out in the top of two support columns (523b) (41)。

7. battery pack according to claim 2, which is characterized in that the bracket (5) further includes the second fixed part (53), institute It states the second fixed part (53) to be set on the pedestal (51), and intersects with first fixed part (52).

8. battery pack according to claim 7, which is characterized in that the battery pack further comprises and the batteries integrated The battery monitoring unit (6) of body (3) electrical connection, is provided with the second mounting hole (531) on second fixed part (53), and described the Two fixed parts (53) are connect by second mounting hole (531) with the battery monitoring unit (6).

9. battery pack according to claim 8, which is characterized in that be further provided on second fixed part (53) logical Hole (532), the side of the through-hole (532) are provided with the protection edge (533) outwardly protruded, the line of the multiple connector (42) Beam is passed through from the through-hole (532).

10. battery pack according to claim 2, which is characterized in that be provided with mounting portion (12), institute in the cabinet (1) It states and is provided on pedestal (51) third mounting hole (511), the pedestal (51) passes through the third mounting hole (511) and the case The mounting portion (12) of body (1) connects.

11. battery pack according to claim 10, which is characterized in that the mounting portion (12) is provided with corresponding to described The positioning column (121) and threaded hole (122) of three mounting holes (511), the positioning column (121) protrude into the third mounting hole (511) in, the threaded hole (122) connect with the fastener for passing through the third mounting hole (511).

12. battery pack according to claim 1, which is characterized in that the quantity of the bracket (5) is at least two, described Anti- striker (7) are provided between bracket (5).

13. battery pack according to claim 1, which is characterized in that it is provided with window (22) on the lid (2), it is described Connector (42) passes through the window (22) and is located at outside the enclosure space, and the panel (41) passes through the window (22) and institute State lid (2) sealed connection.