Battery cell mounting structure and battery assembly

Abstract

The utility model discloses a battery cell mounting structure and a battery assembly, and relates to the technical field of batteries, the battery cell mounting structure comprises a battery cell frame and a vibration reduction structure, and the battery cell frame is provided with at least one mounting groove for mounting a battery cell; the vibration reduction structure is positioned on one side, deviating from the mounting groove, of the battery cell frame, and is arranged opposite to the mounting groove so as to reduce vibration of the battery cell frame. According to the technical scheme provided by the utility model, the anti-vibration performance of the battery cell mounting structure in a dynamic environment is improved, and the vibration of the battery cell is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a battery technology field especially relates to a kind of electric core installation structure and battery assembly. BACKGROUND

[0002] Taking lithium iron phosphate electric core as an example, in use process, lithium iron phosphate electric core is easily influenced by external vibration.For example, in electric automobile and so on application scene, the bump in the process of vehicle driving can be transmitted to electric core assembly.Under the action of external vibration, the internal structure of electric core is easily damaged, and then the performance and service life of electric core are influenced.

[0003] The existing electric core installation structure can support the working requirement of electric core in different environments to some extent, but ignores the vibration problem faced by electric core in dynamic environment. UTILITY MODEL CONTENT

[0004] The main purpose of the utility model is to provide a kind of electric core installation structure and battery assembly, to improve the anti-vibration performance of electric core installation structure in dynamic environment, reduce electric core vibration.

[0005] To achieve the above-mentioned purpose, the electric core installation structure provided by the utility model comprises:

[0006] Electric core frame, at least one installation slot is arranged in the inside, and the installation slot is used to install electric core;And,

[0007] Vibration reduction structure is located at the side of the electric core frame away from the installation slot, and is arranged opposite to the installation slot, to reduce the vibration of the electric core frame.

[0008] In an embodiment, the vibration reduction structure comprises first vibration reduction layer, second vibration reduction layer and third vibration reduction layer in turn, the first vibration reduction layer is attached to the electric core frame;

[0009] Wherein, the hardness of the second vibration reduction layer is greater than the hardness of the first vibration reduction layer, and greater than the hardness of the third vibration reduction layer.

[0010] In an embodiment, the second vibration reduction layer is configured as foam metal material;And / or,

[0011] The first vibration reduction layer is configured as silica gel material;And / or,

[0012] The third vibration reduction layer is configured as rubber material.

[0013] In an embodiment, the electric core installation structure further comprises elastic contact sheet, the elastic contact sheet is arranged in the installation slot, and is used to abut against the electric core.

[0014] In an embodiment, the elastic contact piece is provided with two, and the two elastic contact pieces are oppositely arranged and abut against opposite sides of the battery cell.

[0015] The elastic contact piece is provided with two or more, and the two or more elastic contact pieces are arranged along the circumference of the mounting groove.

[0016] In an embodiment, the battery cell frame comprises a bottom plate and two first supporting plates oppositely arranged on the bottom plate, the mounting groove is arranged on the bottom plate, and through holes are arranged on the two first supporting plates correspondingly, and the elastic contact piece extends out at the through holes.

[0017] In an embodiment, the battery cell mounting structure further comprises two conductive plates, and the two conductive plates are oppositely arranged and located at opposite sides of the battery cell, and the elastic contact piece is fixed to the conductive plate.

[0018] The bottom plate is further provided with a second supporting plate connected with the first supporting plate, the second supporting plate is provided with a limiting groove, and the conductive plate is mounted in the limiting groove.

[0019] In an embodiment, the battery cell mounting structure further comprises a fixing member, and the damping structure is connected with the battery cell frame through the fixing member.

[0020] In an embodiment, the damping structure is provided with a first connecting hole, the battery cell frame is provided with a second connecting hole, and the first connecting hole and the second connecting hole correspond to each other.

[0021] The fixing member comprises a bolt, a nut and a spring washer, the bolt passes through the first connecting hole and the second connecting hole in sequence, and the spring washer and the nut are sequentially sleeved on one end of the bolt extending out of the second connecting hole.

[0022] The utility model further provides a battery assembly which comprises a battery cell and the above-mentioned battery cell mounting structure, and the battery cell is mounted in the mounting groove of the battery cell mounting structure.

[0023] The technical scheme of the utility model sets the battery cell frame and the damping structure on the battery cell mounting structure, wherein the battery cell frame is provided with at least one mounting groove for mounting the battery cell, the damping structure is located on the side of the battery cell frame away from the mounting groove and is oppositely arranged with the mounting groove to damp the battery cell frame. Compared with the existing battery cell mounting structure without damping measures, the damping structure is arranged on the side of the battery cell frame away from the mounting groove, so that the direct contact between the battery cell frame and the outside is avoided. When the external vibration is transmitted to the battery cell mounting structure, the damping structure can disperse and absorb the vibration, reduce the damage of the external vibration to the battery cell frame, improve the anti-vibration performance of the battery cell mounting structure in the dynamic environment, and thus reduce the vibration of the battery cell and improve the service life of the battery cell in the vibration environment. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0025] Figure 1 A schematic diagram of an embodiment of the battery cell mounting structure provided by this utility model;

[0026] Figure 2 for Figure 1 A partially exploded view of the core frame of the battery;

[0027] Figure 3 for Figure 1 Exploded view of the vibration damping structure.

[0028] Explanation of icon numbers:

[0029] 100. Cell frame; 110. Mounting slot; 120. Base plate; 121. Second connecting hole; 130. First support plate; 131. Through hole; 140. Second support plate; 141. Limiting slot; 150. Elastic contact piece; 160. Conductive plate; 170. Side plate;

[0030] 200, Vibration damping structure; 210, First vibration damping layer; 220, Second vibration damping layer; 230, Third vibration damping layer; 240, First connecting hole;

[0031] 300. Fastener; 310. Bolt; 320. Nut; 330. Spring washer;

[0032] 400. Battery cell.

[0033] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0035] It should be noted that if the embodiments of the utility model have directionality indication (such as up, down, left, right, front, back, etc.), the directionality indication is only used to explain the relative position relationship, movement condition, etc. between components in a certain posture, if the certain posture changes, then the directionality indication also changes accordingly.

[0036] In addition, if the embodiments of the utility model have descriptions such as "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, "and / or" or "and / or" appearing throughout the text means that the three parallel schemes are included, for example, "A and / or B" includes A scheme, or B scheme, or A and B simultaneously satisfy the scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary technical personnel in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor is it within the protection scope required by the utility model.

[0037] Taking a lithium iron phosphate battery cell as an example, in the use process, the lithium iron phosphate battery cell is easily affected by external vibration. For example, in the application scenarios such as electric vehicles, the bumps in the vehicle driving process will be transmitted to the battery cell assembly. Under the action of external vibration, the internal structure of the battery cell is easily damaged, thereby affecting the performance and service life of the battery cell.

[0038] The existing battery cell mounting structure can support the working requirements of the battery cell in different environments to a certain extent, but often ignores the vibration problem faced by the battery cell in the dynamic environment.

[0039] The utility model provides a kind of battery cell mounting structure and battery assembly to improve the protection of battery cell.

[0040] Please refer to Figure 1 And Figure 2 In an embodiment, the battery cell mounting structure includes a battery cell frame 100 and a damping structure 200, wherein the battery cell frame 100 is provided with at least one mounting groove 110 inside, for mounting the battery cell 400;The damping structure 200 is located on the side of the battery cell frame 100 away from the mounting groove 110, and is arranged opposite to the mounting groove 110 to damp the battery cell frame 100.

[0041] The cell frame 100 is provided with a receiving space for receiving the cell 400. In an embodiment, the cell frame 100 is made of high-strength aluminum alloy material and is formed by pressure casting process to ensure that it has sufficient strength and light weight. Of course, in other embodiments, the cell frame 100 can also be made of high-strength materials such as carbon fiber composite materials, or formed by stamping process, etc., and the specific material and forming process of the cell frame 100 are not limited herein.

[0042] The receiving space of the cell frame 100 is provided with at least one mounting groove 110 for mounting the cell 400. In an embodiment, the mounting groove 110 corresponds to the cell 400 one by one, and the size and shape of the mounting groove 110 are adapted to the size and shape of the cell 400, so that the cell 400 is embedded in the mounting groove 110 to avoid the cell 400 from shaking in the mounting groove 110. The size and shape of the mounting groove 110 can be flexibly set according to the size and shape of the cell 400, and the specific size and shape of the mounting groove 110 are not limited herein. In an embodiment, the inside of the cell frame 100 is provided with a plurality of mounting grooves 110, and the plurality of mounting grooves 110 are arranged at intervals in the cell frame 100 to avoid the cells 400 from colliding with each other. Of course, in other embodiments, the mounting groove 110 can also be provided with only one, and the specific number of the mounting groove 110 is not limited herein.

[0043] The damping structure 200 is arranged on the side of the cell frame 100 away from the mounting groove 110 and opposite to the mounting groove 110. Specifically, in an embodiment, the side of the cell frame 100 away from the mounting groove 110 is used to contact with the external mounting base, and the damping structure 200 is arranged on the side of the cell frame 100 away from the mounting groove 110 and opposite to the mounting groove 110, which can avoid the hard contact between the cell frame 100 and the external mounting base to damp the cell 400. When the vibration of the external mounting base is transmitted to the cell mounting structure, the damping structure 200 can absorb or disperse the vibration before the cell frame 100 to ensure that the vibration energy transmitted to the inside of the cell frame 100 and the cell 400 is minimized, and the vibration of the cell 400 is reduced.

[0044] The technical scheme of the utility model discloses a battery cell mounting structure, which comprises a battery cell frame 100 and a damping structure 200, wherein the battery cell frame 100 is provided with at least one mounting groove 110 for mounting a battery cell 400; the damping structure 200 is arranged opposite to the mounting groove 110 and located on the side of the battery cell frame 100 away from the mounting groove 110 to damp the battery cell frame 100.

[0045] Please refer to Figure 3 In an embodiment, the damping structure 200 comprises a first damping layer 210, a second damping layer 220 and a third damping layer 230 which are sequentially attached, and the first damping layer 210 is attached to the battery cell frame 100. The hardness of the second damping layer 220 is greater than that of the first damping layer 210 and greater than that of the third damping layer 230.

[0046] The third damping layer 230 is used to directly contact with the mounting base outside, and the third damping layer 230 first receives the external vibration to perform preliminary damping. In an embodiment, the third damping layer 230 is configured as a rubber material, which has high elasticity and can better absorb and disperse vibration energy. Further, in an embodiment, the third damping layer 230 can adopt a mixed material of natural rubber and synthetic rubber to balance the cost and performance. Of course, in other embodiments, the third damping layer 230 can also adopt plant-based rubber, other mixed rubber materials, or adopt thermoplastic elastomer, polyurethane and other materials. Here, the specific material of the third damping layer 230 is not limited.

[0047] The first damping layer 210 is attached to the battery cell frame 100 to provide a stable and hard contact-free joint surface, preventing hard contact between the battery cell frame 100 and the external mounting base. In an embodiment, the first damping layer 210 is configured as a silica gel material, which has good flexibility and stability, and can maintain good damping effect for a long time. Further, in an embodiment, the first damping layer 210 can use food-grade silica gel material, which has a longer service life and can adapt to different environmental conditions, to further ensure the safety and stability of the use of the first damping layer 210. Of course, in other embodiments, the first damping layer 210 can also use silicone rubber or use thermoplastic elastomers, synthetic fibers, etc. Here, the specific material of the first damping layer 210 is not limited.

[0048] The second damping layer 220 is arranged between the first damping layer 210 and the second damping layer 220, and has a hardness greater than that of the first damping layer 210 and the third damping layer 230, which can better disperse and absorb vibrations, while also maintaining the stability of the entire damping structure 200, avoiding excessive deformation of the damping structure 200 and reducing the damping effect. In an embodiment, the second damping layer 220 is configured as a foam metal material, which has a porous structure, a certain hardness, and can well absorb and disperse vibrations to convert vibrations into heat energy or other forms for dissipation. Specifically, in an embodiment, the second damping layer 220 can use aluminum foam, magnesium foam, or other foam metals, or use polyurethane foam, elastomer composite material, spring rubber, etc. Here, the specific material of the second damping layer 220 is not limited. Further, in an embodiment, the foam metal is prepared by a powder metallurgy process to make the foam metal more lightweight and improve the mechanical properties of the foam metal. Of course, in other examples, the foam metal can also be prepared by foaming method, melt solidification method, etc. Here, the specific preparation process of the foam metal is not limited.

[0049] Of course, in other embodiments, the damping structure 200 can also include a damping damper or a spring support, which is arranged between the battery cell frame 100 and the external mounting base, to damp the battery cell frame 100 by consuming energy or releasing elastic potential energy, thereby reducing the vibration of the battery cell 400.

[0050] The technical scheme of the embodiment of the utility model discloses a damping structure 200 of multilayer composite structure, and vibration is handled in three stages, that is, first stage, when the vibration of the installation foundation is transmitted to the battery cell installation structure, the third damping layer 230 is used to carry out preliminary damping first, and a part of vibration energy is absorbed, second stage, vibration energy is transmitted to the second damping layer 220, and the second damping layer 220 is further dispersed and dissipated, third stage, the remaining vibration energy is transmitted to the first damping layer 210, and the first damping layer 210 carries out the last buffering to the remaining vibration, ensures that the vibration energy transmitted to the battery cell frame 100 and the battery cell 400 inside is minimized, improves the anti-vibration performance of the battery cell installation structure in the dynamic environment, and reduces the vibration of the battery cell 400.

[0051] Please refer to Figure 2 In an embodiment, the battery cell installation structure further comprises an elastic contact piece 150, the elastic contact piece 150 is arranged in the installation groove 110 and is used to abut against the battery cell 400.

[0052] Specifically, in an embodiment, the shape of the elastic contact piece 150 is circular, and the elastic contact piece 150 has a plurality of lugs, and the elastic contact piece 150 abuts against the battery cell 400 through the lugs. Of course, in other embodiments, the size and shape of the elastic contact piece 150 can be flexibly set according to the size and shape of the battery cell 400, and here, the specific size and shape of the elastic contact piece 150 are not limited. In an embodiment, two elastic contact pieces 150 are arranged corresponding to one installation groove 110, and the two elastic contact pieces 150 are arranged opposite to each other and abut against opposite sides of the battery cell 400, so as to ensure the stability and electrical contact reliability of the battery cell 400 in the installation groove 110. Of course, in other embodiments, a plurality of installation grooves 110 are arranged, and more than two elastic contact pieces 150 are arranged corresponding to the installation grooves 110, and all the elastic contact pieces 150 located on the same side of the battery cell 400 are arranged along the circumferential direction of the installation groove 110, so as to ensure the electrical contact between all the battery cells 400 and the installation groove 110. Here, the specific number of the elastic contact pieces 150 is not limited.

[0053] Please refer to Figure 2 In an embodiment, the battery cell frame 100 comprises a bottom plate 120 and two first supporting plates 130 arranged opposite to each other on the bottom plate 120, the installation groove 110 is arranged on the bottom plate 120, the through hole 131 is arranged corresponding to the elastic contact piece 150 on the two first supporting plates 130, and the elastic contact piece 150 extends out at the through hole 131.

[0054] The bottom plate 120 provides a mounting base for the whole battery cell frame 100. The bottom plate 120 is provided with the mounting groove 110 on one side and is attached to the damping structure 200 on the other side. In an embodiment, the bottom plate 120 is provided with two opposite side plates 170 and two opposite first supporting plates 130. The two side plates 170 and the two first supporting plates 130, together with at least part of the bottom plate 120, enclose a receiving space of the battery cell frame 100. The mounting groove 110 is arranged on the bottom plate 120 and located in the receiving space to mount and protect the battery cell 400. Further, in an embodiment, the two first supporting plates 130 are arranged on opposite sides of the battery cell 400. The first supporting plate 130 is provided with a through hole 131. The elastic contact piece 150 is arranged at the through hole 131 and the protruding pawl thereof protrudes from the through hole 131 to abut against the battery cell 400. In an embodiment, the size of the through hole 131 is adapted to the size of the elastic contact piece 150 to ensure good contact between the elastic contact piece 150 and the battery cell 400. The number and shape of the through hole 131 can be flexibly arranged according to the number and shape of the elastic contact piece 150, and here, the specific number and shape of the through hole 131 are not limited. Of course, in other embodiments, the elastic contact piece 150 can also be directly fixed to the second supporting plate 140 to abut against the battery cell 400 to achieve good electrical contact between the battery cell 400 and the mounting groove 110.

[0055] Please refer to Figure 2 In an embodiment, the battery cell mounting structure further comprises two conductive plates 160 arranged opposite to each other and located on opposite sides of the battery cell 400. The elastic contact piece 150 is fixed to the conductive plate 160.

[0056] The two conductive plates 160 are arranged on opposite sides of the battery cell 400 to ensure effective conduction of current. In an embodiment, the bottom plate 120 is provided with the second supporting plate 140 connected to the first supporting plate 130, and here, the specific connection manner of the second supporting plate 140 and the first supporting plate 130 is not limited. The second supporting plate 140 is provided with two limit grooves 141 on the side facing the first supporting plate 130. One conductive plate 160 is correspondingly arranged in one limit groove 141 to arrange the two conductive plates 160 on opposite sides of the battery cell 400. In addition, the first supporting plate 130 also provides protection for the conductive plate 160. In another embodiment, the first supporting plate 130 and the second supporting plate 140 clamp the conductive plate 160 to fix the conductive plate 160. Of course, in other embodiments, the conductive plate 160 can also be directly arranged on the second supporting plate 140, and here, the connection manner of the conductive plate 160 and the second supporting plate 140 is not limited.

[0057] The elastic contact pieces 150 are fixed to the conductive plates 160, and specifically, in an embodiment, all the elastic contact pieces 150 located on the same side of the battery cell 400 are fixed to the same conductive plate 160 to ensure effective conduction of current. In an embodiment, the elastic contact pieces 150 can be fixed to the conductive plates 160 by spot welding, riveting or bonding, and the like, and the fixing connection mode of the elastic contact pieces 150 and the conductive plates 160 is not limited herein.

[0058] The technical scheme of the embodiment of the utility model discloses fixes the elastic contact piece 150 in the installation groove 110, makes the battery cell 400 and the elastic contact piece 150 abut, guarantees the good electric contact of battery cell 400 and installation groove 110. Meanwhile, the elastic contact piece 150 can also buffer the vibration, avoids the problem of loosening or poor contact of battery cell 400 in the use process due to vibration, reduces the vibration of battery cell 400, improves the use reliability of battery cell 400. In addition, the elastic contact piece 150 is also fixed to the conductive plate 160, guarantees the effective conduction of current, improves the charge-discharge efficiency of battery cell 400.

[0059] Please refer to Figure 1 In an embodiment, the battery cell mounting structure further comprises a fixing member 300, and the damping structure 200 is connected with the battery cell frame 100 through the fixing member 300.

[0060] In an embodiment, the damping structure 200 is arranged on the side of the battery cell frame 100 away from the installation groove 110 and is attached to the bottom plate 120, and the damping structure 200 is connected with the bottom plate 120 through the fixing member 300. Specifically, in an embodiment, the fixing member 300 comprises a bolt 310, a nut 320 and a spring washer 330, the damping structure 200 is provided with a first connecting hole 240, the bottom plate 120 is provided with a second connecting hole 121, and the first connecting hole 240 and the second connecting hole 121 correspond one by one. The bolt 310 passes through the first connecting hole 240 and the second connecting hole 121 in sequence, and the spring washer 330 and the nut 320 are sequentially sleeved on the end of the bolt 310 protruding out of the second connecting hole 121 to realize the fixed connection of the damping structure 200 and the battery cell frame 100. When the nut 320 is tightened, it should be ensured that the spring washer 330 is in a proper compressed state to ensure the fastening of the connection and ensure that the spring washer 330 can play its damping function. In another embodiment, the fixing member 300 can also comprise a buffer screw, and the damping structure 200 and the bottom plate 120 are respectively provided with corresponding screw holes, and the buffer screw is installed in the screw holes to effectively relieve the impact and vibration at the threaded connection position. Of course, in other embodiments, the damping structure 200 can also be connected with the battery cell frame 100 by bonding or the like.

[0061] The technical scheme of the embodiment of the utility model realizes the fixed connection of the electric core frame 100 and the damping structure 200 through the fixing piece 300. Among them, the fixing piece 300 includes the bolt 310, the nut 320 and the spring washer 330, on the one hand, the spring washer 330 can provide certain elastic compensation in the tightening process of the nut 320, prevent the nut 320 from being excessively tightened and damage the damping structure 200 or the electric core frame 100, on the other hand, the spring washer 330 can also play a certain buffering effect on the vibration, reduce the impact on the connecting part due to the vibration.

[0062] The utility model discloses still put forward a kind of battery assembly, including electric core 400 and electric core installation structure, electric core 400 is installed in the installation groove 110 of electric core installation structure, the specific structure of this electric core installation structure refers to above-mentioned embodiment, since the battery assembly of the utility model has adopted all technical solutions of above-mentioned all embodiments, therefore at least have all beneficial effects brought by the technical scheme of above-mentioned embodiment, here no longer repeat.

[0063] The above-mentioned is only the exemplary implementation of the utility model, and not therefore limit the patent range of the utility model, all equivalent structural transformations made in the technical concept of the utility model using the utility model specification and drawing contents, or direct / indirect application in other related technical fields are included in the patent protection range of the utility model.

Claims

1. A cell mounting structure, characterized in that, The application relates to an electric core mounting structure. The electric core mounting structure comprises an electric core frame and a damping structure. The damping structure is arranged on the side of the electric core frame away from the mounting slot and is arranged opposite to the mounting slot to damp the electric core frame.

2. The battery cell mounting structure according to claim 1, wherein The damping structure comprises a first damping layer, a second damping layer and a third damping layer which are sequentially attached. The hardness of the second damping layer is greater than that of the first damping layer and greater than that of the third damping layer.

3. The battery cell mounting structure according to claim 2, wherein The second damping layer is configured as a foam metal material; and / or The first damping layer is configured as a silica gel material; and / or The third damping layer is configured as a rubber material.

4. The battery cell mounting structure according to claim 1, wherein The electric core mounting structure further comprises an elastic contact sheet which is arranged on the mounting slot and used to abut against the electric core.

5. The cell mounting structure according to claim 4, wherein The elastic contact sheet is provided with two elastic contact sheets which are arranged opposite to each other and abut against opposite sides of the electric core; or The elastic contact sheet is provided with more than two elastic contact sheets which are arranged along the circumference of the mounting slot.

6. The battery cell mounting structure according to claim 5, wherein The electric core frame comprises a bottom plate and two first supporting plates which are arranged opposite to each other on the bottom plate.

7. The battery cell mounting structure according to claim 6, wherein The mounting slot is arranged on the bottom plate, and the two first supporting plates are provided with through holes corresponding to each other. The elastic contact sheet is arranged on the through hole.

8. The battery cell mounting structure according to claim 1, wherein The electric core mounting structure further comprises two conductive plates which are arranged opposite to each other and located on opposite sides of the electric core.

9. The battery cell mounting structure according to claim 8, wherein The elastic contact sheet is fixed on the conductive plate. The bottom plate is provided with a second supporting plate which is connected with the first supporting plate.

10. A battery assembly characterized by, The second supporting plate is provided with a limiting slot, and the conductive plate is arranged on the limiting slot. The electric core mounting structure further comprises a fixing member. The damping structure is connected with the electric core frame through the fixing member. The damping structure is provided with a first connecting hole, and the electric core frame is provided with a second connecting hole. The first connecting hole and the second connecting hole are one-to-one corresponding. The fixing member comprises a bolt, a nut and a spring washer. The bolt is sequentially arranged through the first connecting hole and the second connecting hole. The spring washer and the nut are sequentially arranged on the end of the bolt which is arranged out of the second connecting hole. The application relates to an electric core mounting structure. The electric core is arranged in the mounting slot of the electric core mounting structure.

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