Battery restraining plate and battery module

Abstract

The utility model provides a battery restraining plate and a battery module. The battery restraining plate comprises a plate body, a reinforcing rib and a convex hull piece, a containing cavity is formed in one side face of the plate body, the containing cavity is used for containing a battery, a locking hole is formed in the plate body, the locking hole is adjacent to the containing cavity, the reinforcing rib is located in the containing cavity and fixedly connected with the plate body, and the convex hull piece is fixedly connected with the plate body. The convex hull piece is located on the peripheral side of the plate body and fixedly connected with the plate body, the convex hull piece and the plate body are jointly provided with screw joint holes, and the reinforcing ribs, the convex hull piece and the plate body are of an integrally-formed structure. The reinforcing ribs improve the structural strength of the plate body at the containing cavity, the situation that the plate body is bent after a fastener penetrates through the locking hole is avoided, the convex hull pieces increase the thickness of the plate body, the situation that the plate body is broken when a screw is screwed is avoided, namely, the structural strength of the screw joint hole of the plate body is improved, and the service life of the plate body is prolonged. And therefore, the fixing effect of the restraining plate on the battery module is relatively good.

Description

Technical Field

[0001] The present disclosure relates to the field of battery modules, and in particular to a battery restraint plate and a battery module. Background Art

[0002] During the assembly of the battery module, a pressure strip or a boss is usually provided at the outer periphery of the battery module, so that when the battery module is assembled, the restraining shell of the battery module is locked and fixed on the tray or frame using fasteners to install the battery module on the tray or frame. However, the pressure strip and the boss occupy a large space, which is not conducive to improving the energy density of the battery module.

[0003] In order to solve the above problems, the Chinese patent application number CN202320647661.8 discloses a battery module and its restraint plate, restraint housing, battery, power consumption and energy storage device. The restraint plate has a first surface and a second surface relative to each other. The second surface is used as the inner wall of the battery cell accommodating cavity. The first surface is provided with at least one plug-in portion, which is used to plug and match with the restraint plate on another battery module. The above battery module is connected by a plurality of restraint plates to fix the battery module, that is, there is no need to set a mounting structure such as a pressure strip or a boss, so as to avoid wasting space and assemble more battery cells.

[0004] However, the structural design of the above-mentioned restraint plate has the following problems during use:

[0005] The restraint plates are plugged in pairs to fix the battery module, that is, there is no need to set up mounting structures such as pressure strips or bosses, which avoids space waste and allows more battery cells to be assembled. However, when the restraint plates are fastened and need to be locked by locking members, the restraint plates are subjected to stress from the locking members, resulting in greater force in the middle, and the structural strength of the restraint plates is low. After a long time, the restraint plates are prone to bend, resulting in poor fixing effect of the restraint plates on the battery module.

[0006] Therefore, there is an urgent need for a restraint plate with high structural strength and good fixing effect on the battery module. Utility Model Content

[0007] The purpose of the present invention is to overcome the deficiencies in the prior art and to provide a battery restraint plate and a battery module with high structural strength and better fixation effect on the battery module.

[0008] The purpose of this disclosure is achieved through the following technical solutions:

[0009] A battery restraint plate, comprising:

[0010] A plate body, a side surface of the plate body is provided with a receiving cavity, the receiving cavity is used to receive a portion of a battery, the plate body is provided with a locking hole, the locking hole is arranged adjacent to the receiving cavity, the locking hole is used to penetrate a fastener, so that two battery restraint plates can clamp the battery together,

[0011] The battery restraint plate also includes a reinforcing rib and a convex part, the reinforcing rib is located in the accommodating cavity and is fixedly connected to the plate body, the convex part is located on the peripheral side of the plate body and is fixedly connected to the plate body, the convex part is provided with a first groove, and the plate body is provided with a second groove, the opening of the second groove is arranged opposite to the opening of the first groove to form a screw hole, and the reinforcing rib, the convex part and the plate body are an integrally formed structure.

[0012] In one embodiment, the thickness of the reinforcing rib is 2mm-3mm.

[0013] In one of the embodiments, the thickness of the convex part is 3mm-4mm.

[0014] In one of the embodiments, the reinforcing rib is extended along the width direction of the accommodating cavity.

[0015] In one embodiment, the reinforcing rib, the convex part and the plate body are an integrally stamped structure.

[0016] In one of the embodiments, the plate body is further provided with a avoidance groove, and the avoidance groove is communicated with the accommodating cavity.

[0017] In one embodiment, the number of the avoidance grooves is two, the two avoidance grooves are respectively located at two ends of the accommodating cavity, and each of the avoidance grooves is communicated with the accommodating cavity.

[0018] In one of the embodiments, a stamping cavity is formed on a side of the plate body away from the convex part, and the stamping cavity is arranged corresponding to the convex part.

[0019] In one embodiment, there are multiple convex parts and multiple stamping cavities, and the multiple convex parts are evenly distributed on the periphery of one side of the plate body, and the multiple stamping cavities are evenly distributed on the periphery of the other side of the plate body. The multiple convex parts are arranged in one-to-one correspondence with the corresponding stamping cavities.

[0020] A battery module comprises the battery restraint plate described in any one of the above embodiments.

[0021] Compared with the prior art, the present invention has at least the following advantages:

[0022] The battery restraint plate mentioned above has a receiving cavity on one side of the plate body, the receiving cavity is used to place the battery, the locking hole is arranged adjacent to the receiving cavity, the locking hole is used for the fastener to pass through, the reinforcing rib is located in the receiving cavity, and the reinforcing rib, the convex piece and the plate body are an integrally formed structure, the reinforcing rib improves the structural strength of the plate body at the receiving cavity, that is, it avoids the situation that the plate body is bent after the fastener passes through the locking hole. The convex piece is located on the peripheral side of the plate body, and the convex piece and the plate body are jointly provided with a screw hole, the screw hole is used for the screw to pass through, and the convex piece increases the thickness of the plate body, avoiding the situation that the plate body breaks when the screw is screwed, that is, it improves the structural strength of the plate body at the screw hole, thereby making the restraint plate have a better fixing effect on the battery module. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present disclosure and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 A schematic diagram of the structure of a battery restraint plate according to an embodiment;

[0025] Figure 2 for Figure 1 Another schematic diagram of the structure of the battery restraint plate shown;

[0026] Figure 3 for Figure 1 Another structural schematic diagram of the battery restraint plate shown. DETAILED DESCRIPTION

[0027] In order to facilitate the understanding of the present disclosure, the present disclosure will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present disclosure are given in the drawings. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present disclosure more thoroughly and comprehensively understood.

[0028] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present disclosure. The terms used herein in the specification of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0030] The present invention provides a battery restraint plate, comprising a plate body, a reinforcing rib and a convex piece, wherein a accommodating cavity is provided on one side of the plate body, the accommodating cavity is used to accommodate part of a battery, the plate body is provided with a locking hole, the locking hole is arranged adjacent to the accommodating cavity, the locking hole is used to penetrate a fastener so that two battery restraint plates can clamp the battery together, the reinforcing rib is located in the accommodating cavity and is fixedly connected to the plate body, the convex piece is located on the circumferential side of the plate body and is fixedly connected to the plate body, the convex piece is provided with a first groove, the plate body is provided with a second groove, the opening of the second groove is arranged opposite to the opening of the first groove to form a screw hole, the screw hole is used to lock a screw after the battery restraint plate and the battery are assembled, and the reinforcing rib, the convex piece and the plate body are an integrally formed structure.

[0031] The battery restraint plate mentioned above has a receiving cavity on one side of the plate body, the receiving cavity is used to place the battery, the locking hole is arranged adjacent to the receiving cavity, the locking hole is used for the fastener to pass through, the reinforcing rib is located in the receiving cavity, and the reinforcing rib, the convex piece and the plate body are an integrally formed structure, the reinforcing rib improves the structural strength of the plate body at the receiving cavity, that is, it avoids the situation that the plate body is bent after the fastener passes through the locking hole. The convex piece is located on the peripheral side of the plate body, and the convex piece and the plate body are jointly provided with a screw hole, the screw hole is used for the screw to pass through, and the convex piece increases the thickness of the plate body, avoiding the situation that the plate body breaks when the screw is screwed, that is, it improves the structural strength of the plate body at the screw hole, thereby making the restraint plate have a better fixing effect on the battery module.

[0032] In order to better understand the technical solutions and beneficial effects of the present invention, the present invention is further described in detail below in conjunction with specific embodiments:

[0033] like Figure 1 and Figure 2As shown, a battery restraint plate 10 of an embodiment includes a plate body 100, a reinforcing rib 200 and a convex piece 300. A accommodating cavity 110 is provided on one side of the plate body 100. The accommodating cavity 110 is used to accommodate a portion of a battery. A locking hole 120 is provided on the plate body 100. The locking hole 120 is arranged adjacent to the accommodating cavity 110. The locking hole 120 is used to penetrate a fastener so that two battery restraint plates 10 can clamp the battery together. The reinforcing rib 200 is located in the accommodating cavity 110 and is in contact with the battery. The plate body 100 is fixedly connected, the convex piece 300 is located on the peripheral side of the plate body 100 and is fixedly connected to the plate body 100, the convex piece 300 is provided with a first groove, and the plate body 100 is provided with a second groove, the opening of the second groove is arranged opposite to the opening of the first groove to form a screw hole 310, that is, the plate body 100 and the convex piece 300 jointly form the screw hole 310, and the reinforcing rib 200, the convex piece 300 and the plate body 100 are an integrally formed structure.

[0034] In this embodiment, the battery is fixed by two restraint plates, that is, the two sides of the battery are respectively located in the accommodating chambers 110 of the two restraint plates, and the fasteners pass through the locking holes 120 of the two restraint plates to lock the restraint plates. At this time, since the locking holes 120 are adjacent to the accommodating chamber 110, the plate body 100 at the accommodating chamber 110 is subjected to a large force from the fasteners, which easily causes the plate body 100 to bend. By providing a reinforcing rib 200 in the accommodating chamber 110, and the reinforcing rib 200, the convex piece 300 and the plate body 100 are an integrally formed structure, the structural strength of the plate body 100 at the accommodating chamber 110 is improved, and the convex piece 300 and the plate body 100 are jointly provided with a screw hole 310, and the screws lock the restraint plate and the bracket of the battery module, and the convex piece 300 increases the thickness at the screw hole 310, thereby improving the structural strength of the plate body 100 at the screw hole 310.

[0035] The above-mentioned battery restraint plate 10 has a accommodating cavity 110 on one side of the plate body 100, and the accommodating cavity 110 is used to place the battery. The locking hole 120 is arranged adjacent to the accommodating cavity 110, and the locking hole 120 is used for fasteners to pass through. The reinforcing rib 200 is located in the accommodating cavity 110, and the reinforcing rib 200, the convex part 300 and the plate body 100 are an integrally formed structure. The reinforcing rib 200 improves the structural strength of the plate body 100 at the accommodating cavity 110, that is, it avoids the situation where the plate body 100 is bent after the fastener passes through the locking hole 120. The convex part 300 is located on the peripheral side of the plate body 100. The convex part 300 and the plate body 100 are jointly provided with a screw hole 310, and the screw hole 310 is used for the screw to pass through. The convex part 300 increases the thickness of the plate body 100 to avoid the plate body 100 from breaking when the screw is screwed, that is, the structural strength of the screw hole 310 of the plate body 100 is improved, thereby making the restraint plate have a better fixing effect on the battery module.

[0036] In one embodiment, the thickness of the reinforcing rib 200 is 2 mm to 3 mm. In this embodiment, the thickness of the reinforcing rib 200 is 3 mm to improve the structural strength of the plate body 100 at the accommodating cavity 110 .

[0037] In one embodiment, the thickness of the convex member 300 is 3 mm to 4 mm. In this embodiment, the thickness of the convex member 300 is 4 mm, so as to increase the thickness of the plate body 100 at the screw hole 310, thereby increasing the structural strength of the plate body 100 at the screw hole 310.

[0038] like Figure 1 As shown, in one embodiment, the reinforcing rib 200 is extended along the width direction of the accommodating cavity 110. It can be understood that the reinforcing rib 200 is extended along the width direction of the accommodating cavity 110, that is, the reinforcing rib 200 is transversely arranged in the accommodating cavity 110, so that the structural strength of the plate body 100 at the accommodating cavity 110 is higher.

[0039] In one embodiment, the reinforcing rib 200, the convex piece 300 and the plate body 100 are an integrally stamped structure. In this embodiment, the reinforcing rib 200, the convex piece 300 and the plate body 100 are integrally formed by a stamping device, so that the structural strength of the reinforcing rib 200, the convex piece 300 and the plate body 100 is higher and the structure is more compact.

[0040] like Figure 1 As shown, in one embodiment, the plate body 100 is further provided with a position-avoiding groove 130, and the position-avoiding groove 130 is communicated with the accommodation cavity 110. It can be understood that a robot is required to assemble the battery and the restraint plate, and the position-avoiding groove 130 is used to avoid the robot.

[0041] like Figure 1 As shown, in one embodiment, the number of the avoidance grooves 130 is two, and the two avoidance grooves 130 are respectively located at the two ends of the accommodating cavity 110, and each of the avoidance grooves 130 is connected to the accommodating cavity 110. In this embodiment, the two avoidance grooves 130 are respectively located at the two ends of the accommodating cavity 110, so that the robot can more conveniently operate when assembling the battery.

[0042] like Figure 3As shown, in one embodiment, a stamping cavity 140 is provided on a side of the plate body 100 away from the convex piece 300, and the stamping cavity 140 is arranged corresponding to the convex piece 300. It can be understood that when the plate body 100 is stamped, the punch presses the material at the stamping cavity 140 to form the stamping cavity 140, and at the same time, the material at the stamping cavity 140 is convexly arranged on the other side surface of the material, thereby forming the convex piece 300, that is, the convex piece 300 is better formed by providing the stamping cavity 140.

[0043] like Figure 1 and Figure 3 As shown, in one embodiment, the number of the convex parts 300 is multiple, the number of the stamping cavities 140 is multiple, the multiple convex parts 300 are evenly distributed on the periphery of one side of the plate body 100, the multiple stamping cavities 140 are evenly distributed on the periphery of the other side of the plate body 100, and the multiple convex parts 300 are arranged in one-to-one correspondence with the corresponding stamping cavities 140. It can be understood that each stamping cavity 140 forms a convex part 300 after being punched by a punch, and each convex part 300 and the plate body 100 form a screw hole 310 together, and the screw hole 310 is used to lock the screw after the restraint plate and the battery are assembled, that is, the restraint plate and the bracket of the battery module are screwed together by screws. The multiple convex parts 300 are evenly distributed on the periphery of one side of the plate body 100, making the operation of locking the screws more convenient.

[0044] The present application also provides a battery module, comprising the battery restraint plate 10 described in any of the above embodiments.

[0045] Compared with the prior art, the present invention has at least the following advantages:

[0046] The above-mentioned battery restraint plate 10 has a accommodating cavity 110 on one side of the plate body 100, and the accommodating cavity 110 is used to place the battery. The locking hole 120 is arranged adjacent to the accommodating cavity 110, and the locking hole 120 is used for fasteners to pass through. The reinforcing rib 200 is located in the accommodating cavity 110, and the reinforcing rib 200, the convex part 300 and the plate body 100 are an integrally formed structure. The reinforcing rib 200 improves the structural strength of the plate body 100 at the accommodating cavity 110, that is, it avoids the situation where the plate body 100 is bent after the fastener passes through the locking hole 120. The convex part 300 is located on the peripheral side of the plate body 100. The convex part 300 and the plate body 100 are jointly provided with a screw hole 310, and the screw hole 310 is used for the screw to pass through. The convex part 300 increases the thickness of the plate body 100 to avoid the plate body 100 from breaking when the screw is screwed, that is, the structural strength of the screw hole 310 of the plate body 100 is improved, thereby making the restraint plate have a better fixing effect on the battery module.

[0047] The above-mentioned embodiments only express several implementation methods of the present disclosure, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present disclosure, and these all belong to the protection scope of the present disclosure. Therefore, the protection scope of the patent of the present disclosure shall be subject to the attached claims.

Claims

1. A battery restraint plate, comprising a plate body, a side surface of the plate body is provided with a receiving cavity, the receiving cavity is used to receive a portion of a battery, the plate body is provided with a locking hole, the locking hole is arranged adjacent to the receiving cavity, the locking hole is used to penetrate a fastener, so that two battery restraint plates can clamp the battery together, characterized in that: The battery restraint plate also includes a reinforcing rib and a convex part, the reinforcing rib is located in the accommodating cavity and is fixedly connected to the plate body, the convex part is located on the peripheral side of the plate body and is fixedly connected to the plate body, the convex part is provided with a first groove, and the plate body is provided with a second groove, the opening of the second groove is arranged opposite to the opening of the first groove to form a screw hole, and the screw hole is used to lock the screw after the battery restraint plate and the battery are assembled, and the reinforcing rib, the convex part and the plate body are an integrally formed structure.

2. The battery restraint plate according to claim 1, characterized in that: The thickness of the reinforcing rib is 2mm-3mm.

3. The battery restraint plate according to claim 1, characterized in that: The thickness of the convex part is 3mm-4mm.

4. The battery restraint plate according to claim 1, characterized in that: The reinforcing rib is extended along the width direction of the accommodating cavity.

5. The battery restraint plate according to claim 1, characterized in that: The reinforcing ribs, the convex parts and the plate body are an integrated stamping structure.

6. The battery restraint plate according to claim 1, characterized in that: The plate body is further provided with a avoiding groove, and the avoiding groove is communicated with the accommodating cavity.

7. The battery restraint plate according to claim 6, characterized in that: The number of the avoidance grooves is two, the two avoidance grooves are respectively located at two ends of the accommodating cavity, and each of the avoidance grooves is communicated with the accommodating cavity.

8. The battery restraint plate according to claim 1, characterized in that: A stamping cavity is formed on a side of the plate body away from the convex part, and the stamping cavity is arranged corresponding to the convex part.

9. The battery restraint plate according to claim 8, characterized in that: There are multiple convex parts and multiple stamping cavities. The multiple convex parts are evenly distributed on the periphery of one side of the plate body, and the multiple stamping cavities are evenly distributed on the periphery of the other side of the plate body. The multiple convex parts are arranged in one-to-one correspondence with the corresponding stamping cavities.

10. A battery module, characterized in that: A battery restraint plate comprising the battery restraint plate according to any one of claims 1 to 9.

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