CN217589201U

CN217589201U - Heating plate fixing device and battery system

Info

Publication number: CN217589201U
Application number: CN202123013705.1U
Authority: CN
Inventors: 朱建波; 江坤; 陈汉林; 胡建; 党奎
Original assignee: Hubei Eve Power Co Ltd
Current assignee: Hubei Eve Power Co Ltd
Priority date: 2021-12-03
Filing date: 2021-12-03
Publication date: 2022-10-14
Anticipated expiration: 2031-12-03

Abstract

The utility model relates to a hot plate fixing device technical field specifically discloses a hot plate fixing device and battery system, and this hot plate fixing device includes fixed bolster and fixed pin, the fixed bolster and the inner wall rigid coupling of casing, the fixed bolster includes the fixed plate, the fixed plate sets up with the inner wall interval, is provided with jack and locking groove on the fixed plate, the one end in locking groove communicates the jack; the fixed pin includes grafting portion and spacing portion, the both ends of grafting portion respectively with hot plate and spacing portion rigid coupling, and make hot plate and spacing portion interval set up, the fixed pin has the first position of inserting locating the jack to and grafting portion is located locking groove and the spacing portion of fixed plate restriction and moves to the second position that the one side of inner wall was kept away from to the fixed plate by one side that the fixed plate is close to the inner wall to the fixed plate. The heating plate fixing device can not cause the heating plate to deform, and can not cause inconvenience in disassembly and assembly between the heating plate and the shell due to deformation of the shell.

Description

Heating plate fixing device and battery system

Technical Field

The utility model relates to a hot plate fixing device technical field especially relates to a hot plate fixing device and battery system.

Background

At present, most of battery systems adopt a heating plate to heat a battery module, the heating plate is usually fixed on a battery shell, and the battery module is placed on the heating plate.

The heating plate and the shell are usually fixed by bolts or positioning pins. Adopt bolt fastening to lead to the hot plate local deformation easily, and then lead to producing the clearance between deformation position and the battery module, make the hot plate at this position produce dry combustion method, neither do benefit to and heat the battery module, also do not benefit to the long-time use of hot plate. The mode that adopts locating pin and casing to peg graft, when the casing takes place to warp, be unfavorable for the installation and the dismantlement of hot plate and casing.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: the utility model provides a hot plate fixing device and battery system to there is the hot plate to warp or the inconvenient problem of hot plate dismouting when solving heating plate and casing fixed among the correlation technique.

In one aspect, the utility model provides a hot plate fixing device, this hot plate fixing device includes:

the fixed support is fixedly connected with the inner wall of the shell and comprises a fixed plate, the fixed plate and the inner wall are arranged at intervals, the fixed plate is provided with a jack and a locking groove, and one end of the locking groove is communicated with the jack;

the fixing pin, including grafting portion and spacing portion, the both ends of grafting portion respectively with the hot plate with spacing portion rigid coupling, and make the hot plate with spacing portion interval sets up, the fixing pin has to insert and locates the first position of jack to and grafting portion is located the locking groove just fixed plate restriction spacing portion by the fixed plate is close to one side of inner wall moves to the fixed plate is kept away from the second position of one side of inner wall.

As a preferred technical scheme of the heating plate fixing device, the limiting part is a cylinder, the locking groove is a rectangular groove, and the inserting part slides along the length direction of the locking groove;

the diameter of the limiting part is larger than the width of the locking groove.

As the preferred technical scheme of the heating plate fixing device, a circular truncated cone is arranged on one end face, away from the heating plate, of the limiting portion.

As a preferred technical scheme of the heating plate fixing device, the insertion part is a rectangular body, and the distance between two side walls of the insertion part is smaller than the length of the locking groove along the length direction of the locking groove.

As a preferred technical scheme of the heating plate fixing device, the distance between two side walls of the insertion part is smaller than the width of the locking groove along the width direction of the locking groove.

As the preferred technical scheme of the heating plate fixing device, the distance between the limiting part and the heating plate is larger than or equal to the thickness of the fixing plate.

As the preferred technical scheme of the heating plate fixing device, the fixing support further comprises two supporting plates arranged on the inner wall at intervals, and the free ends of the supporting plates are fixedly connected with the fixing plate respectively.

As the preferable technical scheme of the heating plate fixing device, the fixing plate and the two supporting plates are integrally formed.

As a preferred technical scheme of the heating plate fixing device, a plurality of fixing pins are arranged, and a plurality of fixing supports are arranged;

the plurality of fixing pins and the plurality of fixing supports correspond to each other one by one, and the plurality of fixing pins and the plurality of fixing supports are switched between the first position and the second position simultaneously.

On the other hand, the utility model provides a battery system, hot plate fixing device in the above-mentioned arbitrary scheme of inclusion.

The utility model has the advantages that:

the utility model provides a heating plate fixing device, which comprises a fixing support and a fixing pin, wherein the fixing support is fixedly connected with the inner wall of a shell and comprises a fixing plate, the fixing plate and the inner wall are arranged at intervals, a jack and a locking groove are arranged on the fixing plate, and one end of the locking groove is communicated with the jack; the fixed pin includes grafting portion and spacing portion, the both ends of grafting portion respectively with hot plate and spacing portion rigid coupling, and make hot plate and spacing portion interval set up, the fixed pin has the first position of inserting locating the jack to and grafting portion is located locking groove and the spacing portion of fixed plate restriction and moves to the second position that the one side of inner wall was kept away from to the fixed plate by one side that the fixed plate is close to the inner wall to the fixed plate. When the heating plate is fixed on the inner wall of the shell, the fixing pin is inserted into the jack at first, then the fixing pin is switched from the first position to the second position, at the moment, the inserting part is inserted into the jack groove from the jack hole, and meanwhile, the inserting part drives the limiting part to move from the position corresponding to the jack hole to the position corresponding to the jack groove. And then the fixing pin is in a second state, at the moment, the fixing plate limits the limiting part to move from one side of the fixing plate close to the inner wall to a second position of one side of the fixing plate far away from the inner wall. The heating plate fixing device can not cause the heating plate to deform, and can not cause inconvenience in disassembly and assembly between the heating plate and the shell due to deformation of the shell.

Drawings

Fig. 1 is an exploded view of a heating plate fixing device according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of a heating plate fixing device according to an embodiment of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is a schematic structural view of a heating plate and a fixing pin according to an embodiment of the present invention;

FIG. 5 is a partial enlarged view of the portion B in FIG. 4;

fig. 6 is a schematic structural view of a heating plate fixing device according to an embodiment of the present invention;

FIG. 7 is an enlarged view of a portion of FIG. 6 at C;

fig. 8 is a schematic structural view of a fixing bracket according to an embodiment of the present invention.

In the figure:

100. a battery module; 200. heating plates; 300. a housing;

1. fixing a bracket; 11. a fixing plate; 111. a jack; 112. a locking groove; 12. a support plate;

2. a fixing pin; 21. a plug-in part; 22. a limiting part; 221. a round table.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Where the terms "first position" and "second position" are two different positions, and where a first feature is "over", "above" and "on" a second feature, it is intended that the first feature is directly over and obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 1 to 8, the present embodiment provides a heating plate fixing device, which includes a fixing bracket 1 and a fixing pin 2, wherein the fixing bracket 1 is fixedly connected to an inner wall of a housing 300, the fixing bracket 1 includes a fixing plate 11, the fixing plate 11 is spaced from the inner wall, the fixing plate 11 is provided with an insertion hole 111 and a locking groove 112, and one end of the locking groove 112 is communicated with the insertion hole 111; the fixing pin 2 comprises an inserting portion 21 and a limiting portion 22, two ends of the inserting portion 21 are fixedly connected with the heating plate 200 and the limiting portion 22 respectively, the heating plate 200 and the limiting portion 22 are arranged at intervals, the fixing pin 2 is provided with a first position inserted into the insertion hole 111, and the inserting portion 21 is located in the locking groove 112 and the fixing plate 11 limits the limiting portion 22 to move from one side, close to the inner wall, of the fixing plate 11 to a second position, away from one side, far away from the inner wall, of the fixing plate 11. When the heating plate 200 is fixed to the inner wall of the housing 300, the fixing pin 2 is first inserted into the insertion hole 111, and then the fixing pin 2 is switched from the first position to the second position, at this time, the insertion portion 21 is inserted into the insertion groove from the insertion hole, and at the same time, the insertion portion 21 carries the stopper portion 22 to move from the position corresponding to the insertion hole 111 to the position corresponding to the insertion groove. The fixing pin 2 is further in the second state, and at this time, the fixing plate 11 limits the limiting part 22 from moving from the side of the fixing plate 11 close to the inner wall to the second position of the side of the fixing plate 11 far away from the inner wall. The heating plate fixing device does not deform the heating plate 200, and thus the deformed portion is spaced apart from the battery module 100, and the inconvenience of assembly and disassembly between the heating plate 200 and the case 300 due to the deformation of the case 300 is prevented.

The reason why the stopper 22 is restricted from moving from the side of the fixing plate 11 close to the inner wall to the side of the fixing plate 11 far from the inner wall is for the fixing plate 11. Optionally, the limiting part 22 is a cylinder, the locking groove 112 is a rectangular groove, and the insertion part 21 slides along the length direction of the locking groove 112; the diameter of the stopper portion 22 is larger than the width of the locking groove 112. In this embodiment, the position-limiting portion 22 cannot move from the side of the fixing plate 11 close to the inner wall to the side of the fixing plate 11 far from the inner wall through the position-limiting groove in the direction perpendicular to the fixing plate 11. In other embodiments, the position-limiting portion 22 may be a rectangular body, a triangular body, etc., which only needs to be satisfied that the position-limiting portion 22 cannot move from the side of the fixing plate 11 close to the inner wall to the side of the fixing plate 11 far from the inner wall through the position-limiting groove in the direction perpendicular to the fixing plate 11.

Optionally, a circular truncated cone 221 is disposed on an end surface of the limiting portion 22 away from the heating plate 200. In this embodiment, the circular truncated cone 221 is provided to facilitate the limiting portion 22 to pass through the insertion hole 111.

Optionally, the insertion part 21 is a rectangular body, and the distance between the two side walls of the insertion part 21 is smaller than the length of the locking groove 112 along the length direction of the locking groove 112. In this embodiment, the arrangement can ensure that the limiting portion 22 is opposite to the locking groove 112 when the inserting portion 21 is inserted into the locking groove 112.

Alternatively, the distance between the two side walls of the plug part 21 in the width direction of the locking groove 112 is smaller than the width of the locking groove 112. In this embodiment, the arrangement ensures that the plug part 21 can be inserted into the plug groove. In other embodiments, the plug portion 21 may be a cylinder, and the diameter of the cylinder is smaller than the width of the plug slot.

Alternatively, the spacing between the stopper 22 and the heating plate 200 is greater than or equal to the thickness of the fixing plate 11. Preferably, the spacing between the stopper 22 and the heating plate 200 is equal to the thickness of the fixing plate 11. In this embodiment, when the distance between the position-limiting portion 22 and the heating plate 200 is equal to the thickness of the fixing plate 11, the heating plate 200 does not move in the direction perpendicular to the fixing plate 11, and the fixing between the heating plate 200 and the housing 300 is more firm.

Optionally, the fixing bracket 1 further includes two supporting plates 12 disposed on the inner wall at intervals, and free ends of the two supporting plates 12 are respectively fixedly connected to the fixing plate 11. In this embodiment, the two support plates 12 are formed as the fixing plate 11, and the fixing plate 11 is spaced apart from the inner wall of the housing 300.

Meanwhile, the fixing bracket 1 sets the heating plate 200 and the inner wall of the case 300 at an interval, and this structure can prevent the heat generated by the heating plate 200 from being directly conducted by the inner wall of the case 300 to the outside of the case 300, thereby affecting the preheating of the heating plate to the battery module 100.

Alternatively, the fixing plate 11 and the two support plates 12 are integrally formed. In this embodiment, the fixing plate 11 and the supporting plate 12 are both manufactured by a stamping process, and the fixing plate 11 and the two supporting plates 12 are enclosed to form a U-shaped structure. In other embodiments, the fixing plate 11 and the two supporting plates 12 are independent members, and are fixed by welding, gluing or clamping.

Alternatively, the fixing pin 2 is provided in plurality, and the fixing bracket 1 is provided in plurality; the plurality of fixing pins 2 and the plurality of fixing brackets 1 correspond to each other one by one, and the plurality of fixing pins 2 and the plurality of fixing brackets 1 are switched between the first position and the second position at the same time. In this embodiment, in order to fix the heating plate 200 and the housing 300 more firmly, a plurality of fixing pins 2 and fixing brackets 1 are provided. To prevent a part of the fixing pins 2 from opposing the insertion holes 111 of the fixing brackets 1 corresponding thereto, the other part of the fixing pins 2 from opposing the locking grooves 112 of the fixing brackets 1 corresponding thereto, and therefore, the plurality of fixing pins 2 and the plurality of fixing brackets 1 are simultaneously switched between the first position and the second position.

The embodiment also provides a battery system, which comprises the heating plate fixing device in any one of the above schemes.

It is to be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A heating plate fixing device for fixing a heating plate (200) to a housing (300), comprising:

the fixing support (1) is fixedly connected with the inner wall of the shell (300), the fixing support (1) comprises a fixing plate (11), the fixing plate (11) and the inner wall are arranged at intervals, a jack (111) and a locking groove (112) are arranged on the fixing plate (11), and one end of the locking groove (112) is communicated with the jack (111);

fixed pin (2), including grafting portion (21) and spacing portion (22), the both ends of grafting portion (21) respectively with hot plate (200) with spacing portion (22) rigid coupling, and make hot plate (200) with spacing portion (22) interval sets up, fixed pin (2) have insert locate the primary importance of jack (111) to and grafting portion (21) are located locking groove (112) just fixed plate (11) restriction spacing portion (22) by fixed plate (11) are close to one side of inner wall moves to fixed plate (11) is kept away from the second place of one side of inner wall.

2. The heating plate fixing device according to claim 1, wherein the stopper (22) is a cylinder, the locking groove (112) is a rectangular groove, and the insertion part (21) slides along the length direction of the locking groove (112);

the diameter of the limiting part (22) is larger than the width of the locking groove (112).

3. The heating plate fixing device according to claim 2, wherein a truncated cone (221) is provided on an end surface of the stopper (22) away from the heating plate (200).

4. The heating plate fixing device according to claim 2, wherein the insertion part (21) is a rectangular body, and the distance between the two side walls of the insertion part (21) is smaller than the length of the locking groove (112) along the length direction of the locking groove (112).

5. The heating plate fixing device according to claim 4, wherein the distance between both side walls of the insertion part (21) is smaller than the width of the locking groove (112) in the width direction of the locking groove (112).

6. A heating plate fixing device according to claim 1, wherein the spacing between the stopper portion (22) and the heating plate (200) is greater than or equal to the thickness of the fixing plate (11).

7. A heating plate fixing device according to claim 1, wherein the fixing bracket (1) further comprises two support plates (12) spaced apart from each other on the inner wall, and free ends of the two support plates (12) are fixedly connected to the fixing plate (11), respectively.

8. A heating plate fixing device according to claim 7, wherein the fixing plate (11) and the two support plates (12) are integrally formed.

9. The heating plate fixing device according to claim 1, wherein the fixing pin (2) is provided in plurality, and the fixing bracket (1) is provided in plurality;

the fixing pins (2) and the fixing supports (1) are in one-to-one correspondence, and the fixing pins (2) and the fixing supports (1) are switched between the first position and the second position at the same time.

10. A battery system comprising the heating panel fixing device according to any one of claims 1 to 9.