Rolling frame and battery box

Abstract

The rolling frame comprises a first frame, a second frame, a third frame and a fourth frame, the sections of the first frame, the second frame, the third frame and the fourth frame are shaped like a Chinese character'ri ', mounting holes are formed in the top faces of the first frame, and the two ends of the first frame are connected with the inner side wall of the second frame and the inner side wall of the fourth frame respectively. Two ends of the third frame are respectively connected with the second frame and the fourth frame and are internally communicated; a first lower cavity is formed in the inner wall of the first frame, and a connecting hole communicated with the first lower cavity is formed in the outer side face of the first frame; a second lower cavity is formed in the inner wall of the second frame, and a first lifting hole leading to the second lower cavity is formed in the outer side face of the second frame. Wax is injected into the cavities of the upper layers from the mounting holes, the first lower cavities from the connecting holes and the second lower cavities through the first hoisting holes, the wax can flow into the cavities of the lower layers of the third frame and the fourth frame from the second lower cavities, and the wax can flow into the cavities of the lower layers of the third frame and the fourth frame through the mounting holes, the connecting holes and the first hoisting holes which are originally needed. Wax injection of the inner cavity of the whole rolling frame can be achieved, internal corrosion is avoided, the service life of a product is prolonged, and the strength of the product is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery technology field especially relates to a roll -in frame and battery box. BACKGROUND

[0002] The bottom box of battery box generally includes frame and bottom plate, in order to improve the strength, will adopt roll -in process processing to frame. In the high -strength roll -in frame, to promote product strength, usually will design more complex cross section, such as the day character, the character character, etc., this kind of product will form cavity in the inside. Roll -in frame after processing, will carry out rust -proof treatment, such as powder spraying, electrophoresis etc.

[0003] In the prior art, the cavity inside cannot be treated for rust prevention, which can easily cause internal rusting and reduce the service life and strength of the product. UTILITY MODEL CONTENTS

[0004] Therefore, the utility model provides a roll -in frame and battery box to solve the technical problem that the cavity inside cannot be treated for rust prevention, which can easily cause internal rusting and reduce the service life and strength of the product.

[0005] The technical scheme of the utility model is as follows:

[0006] Firstly, the utility model provides a roll -in frame, including the first frame, second frame, third frame and fourth frame that the cross section is the day character and the top surface is equipped with the mounting hole, the both ends of first frame are connected with the inner side wall of second frame and the inner side wall of fourth frame respectively, the both ends of third frame are connected with second frame and fourth frame respectively and the inside is communicated, wherein:

[0007] The inner wall of first frame is equipped with first lower cavity, and the outer side of first frame is equipped with connecting hole communicated with first lower cavity.

[0008] The inner wall of second frame is equipped with second lower cavity, and the outer side is equipped with first hoisting hole communicated with second lower cavity.

[0009] On the basis of the above technical scheme, preferably, the inner side of second frame is equipped with first process hole communicated with second lower cavity and first lower cavity, and the end face of second frame close to first frame is equipped with first wax injection hole communicated with second lower cavity.

[0010] On the basis of the above technical scheme, preferably, the inner wall of first frame is further equipped with first upper cavity, and the inner wall of second frame is further equipped with second upper cavity.

[0011] The inner side of the second frame is further provided with a second process hole connecting the second upper cavity and the first upper cavity; and the end face of the second frame close to the first frame is provided with a second wax injection hole connecting the second upper cavity.

[0012] On the basis of the above technical scheme, preferably, the inner wall of the fourth frame is provided with a fourth lower cavity, and the inner side is provided with a third process hole connecting the fourth lower cavity and the first lower cavity; and the end face of the fourth frame close to the first frame is provided with a third wax injection hole connecting the fourth lower cavity.

[0013] On the basis of the above technical scheme, preferably, the outer side of the fourth frame is provided with a second hoisting hole connecting the fourth lower cavity.

[0014] On the basis of the above technical scheme, preferably, the two ends of the first frame are connected with the second frame and the fourth frame by vertical butt welding, and the two ends of the third frame are connected with the second frame and the fourth frame by 45° butt welding respectively.

[0015] On the basis of the above technical scheme, preferably, the outer side of the first side beam is welded with the inner side of the first frame, and the two end faces are welded with the second frame and the fourth frame respectively.

[0016] On the basis of the above technical scheme, preferably, the outer side of the second side beam is welded with the inner side of the third frame, and the two end faces are welded with the second frame and the fourth frame respectively.

[0017] On the basis of the above technical scheme, preferably, the inner wall of the third frame is provided with a third lower cavity, and the two ends of the outer side of the third frame are respectively provided with fourth process holes, and the fourth process holes are connected with the third lower cavity.

[0018] On the basis of the above technical scheme, preferably, the outer side of the first side beam is welded with the inner side of the first frame, and the two end faces are welded with the second frame and the fourth frame respectively.

[0019] In a second aspect, the utility model provides a kind of battery box, including bottom plate and the roller frame of first aspect described, the bottom plate is connected with the roller frame.

[0020] The roller frame and battery box of the utility model have the following beneficial effects relative to prior art:

[0021] (1) The top surface of the first, second, third and fourth frames is provided with a mounting hole, the mounting hole is used to inject wax into the upper cavity, the outer side surface of the first frame is provided with a connecting hole connected with the first lower cavity, wax is injected into the first lower cavity through the connecting hole, the two ends of the third frame are connected with the second and fourth frames respectively and are connected internally, wax is injected into the second lower cavity through the first lifting hole, and the wax flows from the second lower cavity into the lower cavity of the third and fourth frames, the mounting hole, connecting hole and first lifting hole are needed for wax injection, which can realize the wax injection of the internal cavity of the entire roller frame, avoid internal rust and improve the service life and strength of the product;

[0022] (2) The inner side surface of the second frame is provided with a first process hole connected with the second lower cavity and the first lower cavity, the end surface of the second frame close to the first frame is provided with a first wax injection hole connected with the second lower cavity, wax is injected into the second lower cavity through the first wax injection hole, and the wax flows into the first lower cavity through the first process hole, which improves the wax injection speed of the first lower cavity and enables the first lower cavity to be injected with wax even when the connecting hole is blocked, thereby improving the reliability;

[0023] (3) The inner side surface of the second frame is further provided with a second process hole connected with the second upper cavity and the first upper cavity, the end surface of the second frame close to the first frame is provided with a second wax injection hole connected with the second upper cavity, wax is injected into the second upper cavity through the second wax injection hole, and the wax flows into the first upper cavity through the second process hole and flows into the upper cavity of the third and fourth frames from the second upper cavity, which enables the upper cavity to be injected with wax even when the mounting hole is blocked, thereby improving the reliability;

[0024] (4) The inner side surface of the fourth frame is provided with a third process hole connected with the fourth lower cavity and the first lower cavity, the end surface of the fourth frame close to the first frame is provided with a third wax injection hole connected with the fourth lower cavity, wax is injected into the fourth lower cavity through the third wax injection hole, and the wax flows into the first lower cavity through the third process hole, which improves the wax injection speed of the first lower cavity and enables the first lower cavity to be injected with wax even when the connecting hole is blocked, thereby improving the reliability;

[0025] (5) The outer side surface of the fourth frame is provided with a second lifting hole connected with the fourth lower cavity, which can be used to inject wax into the fourth lower cavity, avoid wax blockage and slow wax injection caused by long flow path when wax is injected from the second lower cavity into the third and fourth frames, improve the wax injection efficiency of the fourth lower cavity, and improve the reliability. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced as follows. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0027] Figure 1 It is a structure diagram of the roller frame of the present application.

[0028] Figure 2 It is an exploded view of the roller frame of the present application.

[0029] Figure 3 It is a structure diagram of the first frame of the present application.

[0030] Figure 4 It is a structure diagram of the second frame of the present application from a first perspective.

[0031] Figure 5 It is a structure diagram of the second frame of the present application from a second perspective.

[0032] Figure 6 It is a structure diagram of the third frame of the present application.

[0033] Figure 7 It is a structure diagram of the fourth frame of the present application from a first perspective.

[0034] Figure 8 It is a structure diagram of the fourth frame of the present application from a first perspective.

[0035] Figure 9 It is a flow diagram of the wax of the wax injection process of the lower cavity of the roller frame of the present application.

[0036] Figure 10 It is a flow diagram of the wax of the wax injection process of the upper cavity of the roller frame of the present application.

[0037] Legend: 1-first frame, 2-second frame, 3-third frame, 4-fourth frame, 5-first edge beam, 6-second edge beam, 7-first connecting column, 8-second connecting column.

[0038] 00-mounting hole.

[0039] 11-first lower cavity, 12-first upper cavity, 13-connecting hole.

[0040] 21 - Second lower cavity, 22 - Second upper cavity, 23 - First lifting hole, 24 - First process hole, 25 - First wax injection hole, 26 - Second process hole, 27 - Second wax injection hole;

[0041] 31 - Third lower cavity, 32 - Third upper cavity, 33 - Fourth process hole;

[0042] 41 - Fourth lower cavity, 42 - Fourth upper cavity, 43 - Third process hole, 44 - Third wax injection hole, 45 - Second lifting hole. Detailed implementation manners

[0043] Next, in combination with the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0044] Refer to Figures 1-10 As shown, in the first - aspect embodiment of the present invention, a rolling frame is proposed, which includes a first frame 1, a second frame 2, a third frame 3, and a fourth frame 4 with a "day" - shaped cross - section and mounting holes 00 provided on the top surfaces. Each frame is divided into an upper cavity and a lower cavity by a corresponding intermediate partition layer. The two ends of the first frame 1 are respectively connected to the inner side walls of the second frame 2 and the fourth frame 4, and the two ends of the third frame 3 are respectively connected to the second frame 2 and the fourth frame 4 and are internally connected. Among them:

[0045] The inner wall of the first frame 1 is provided with a first lower cavity 11 and a first upper cavity 12, and a connection hole 13 communicating with the first lower cavity 11 is provided on the outer side surface of the first frame 1;

[0046] The inner wall of the second frame 2 is provided with a second lower cavity 21 and a second upper cavity 22, and a first lifting hole 23 leading to the second lower cavity 21 is provided on the outer side surface;

[0047] The inner wall of the third frame 3 is provided with a third lower cavity 31 and a third upper cavity 32;

[0048] The inner wall of the fourth frame 4 is provided with a fourth lower cavity 41 and a fourth upper cavity 42.

[0049] It needs to be explained that the two ends of the first frame 1 are connected with the second frame 2 and the fourth frame 4 by vertical butt welding, the end faces of the first frame 1 are blocked by the inner side faces of the second frame 2 and the fourth frame 4, the two ends of the third frame 3 are connected with the second frame 2 and the fourth frame 4 by 45° butt welding respectively, the upper cavities of the second frame 2, the third frame 3 and the fourth frame 4 are communicated in sequence, and the lower cavities are communicated in sequence.

[0050] The roller frame provided in the embodiment is provided with mounting holes 00 on the top faces of the first frame 1, the second frame 2, the third frame 3 and the fourth frame 4, the mounting holes 00 inject wax into the upper cavities, the outer side face of the first frame 1 is provided with a connecting hole 13 communicating with the first lower cavity 11, wax is injected into the first lower cavity 11 from the connecting hole 13, since the two ends of the third frame 3 are connected with the second frame 2 and the fourth frame 4 respectively and the interiors are communicated, wax is injected into the second lower cavity 21 from the first lifting hole 23, and the wax flows into the lower cavities of the third frame 3 and the fourth frame 4 from the second lower cavity 21, the mounting holes 00, the connecting hole 13 and the first lifting hole 23 which are needed originally can realize the wax injection of the internal cavities of the whole roller frame, avoid internal rust and improve the service life and strength of the product.

[0051] In some embodiments, the inner side face of the second frame 2 is provided with a first process hole 24 communicating with the second lower cavity 21 and the first lower cavity 11, and the end face of the second frame 2 close to the first frame 1 is provided with a first wax injection hole 25 communicating with the second lower cavity 21. Wax is injected into the second lower cavity 21 from the first wax injection hole 25, and the wax flows into the first lower cavity 11 from the first process hole 24 nearby, the wax injection speed of the first lower cavity 11 is improved, and the first lower cavity 11 can still be injected with wax after the connecting hole 13 is used and blocked, and the reliability is improved.

[0052] In some embodiments, the inner side face of the second frame 2 is further provided with a second process hole 26 communicating with the second upper cavity 22 and the first upper cavity 12, and the end face of the second frame 2 close to the first frame 1 is provided with a second wax injection hole 27 communicating with the second upper cavity 22. Wax is injected into the second upper cavity 22 from the second wax injection hole 27, and the wax flows into the first upper cavity 12 from the second process hole 26 nearby, and the wax flows into the upper cavities of the third frame 3 and the fourth frame 4 from the second upper cavity 22, the upper first upper cavity 12, the second upper cavity 22, the third upper cavity 32 and the fourth upper cavity 42 can still be injected with wax after the mounting holes 00 are used and blocked, the reliability is improved.

[0053] In some embodiments, the inner side of the fourth frame 4 is provided with a third process hole 43 connecting the fourth lower cavity 41 and the first lower cavity 11; the end face of the fourth frame 4 close to the first frame 1 is provided with a third wax injection hole 44 connecting the fourth lower cavity 41. Wax is injected into the fourth lower cavity 41 from the third wax injection hole 44, and then flows into the first lower cavity 11 from the third process hole 43, thereby improving the wax injection speed of the first lower cavity 11, and the first lower cavity 11 can still be injected with wax after the connecting hole 13 is used to block, thereby improving the reliability.

[0054] In some embodiments, the outer side of the fourth frame 4 is provided with a second hoisting hole 45 connecting the fourth lower cavity 41. Wax is injected into the fourth lower cavity 41 from the second hoisting hole 45, thereby avoiding wax blockage and slow wax injection efficiency caused by too long flow path when the wax flows from the second lower cavity 21 to the third lower cavity 31 and then to the fourth lower cavity 41, improving the wax injection efficiency of the fourth lower cavity 41, and improving the reliability.

[0055] In some embodiments, the roller pressing frame further comprises a first edge beam 5, the outer side of the first edge beam 5 is welded to the inner side of the first frame 1, and the two end faces are welded to the second frame 2 and the fourth frame 4 respectively. The first edge beam 5 is arranged on the inner side of the first frame 1, and the two ends are welded to the second frame 2 and the fourth frame 4 respectively, thereby strengthening the whole roller pressing frame and also serving as a front load-bearing beam of the module.

[0056] In some embodiments, the roller pressing frame further comprises a second edge beam 6, the outer side of the second edge beam 6 is welded to the inner side of the third frame 3, and the two end faces are welded to the second frame 2 and the fourth frame 4 respectively. The second edge beam 6 is arranged on the inner side of the third frame 3, and the two ends are welded to the second frame 2 and the fourth frame 4 respectively, thereby strengthening the whole roller pressing frame and also serving as a rear load-bearing beam of the module.

[0057] In some embodiments, the outer side of the third frame 3 is provided with a fourth process hole 33 at both ends, and the fourth process hole 33 connects the third lower cavity 31. The fourth process hole 33 serves as a process hole for welding internal welds, which not only facilitates the welding of the third frame 3 and the second frame 2, but also facilitates the welding of the third frame 3 and the fourth frame 4, thereby improving the convenience of welding, and the two fourth process holes 33 can also be used for wax injection operation, thereby facilitating the improvement of the wax injection efficiency of the third lower cavity 31.

[0058] In some embodiments, the roller pressing frame further comprises a first connecting column 7 and a second connecting column 8, the first connecting column 7 is arranged on the bottom surface of the second frame 2 close to one end of the first frame 1, and the second connecting column 8 is arranged on the bottom surface of the fourth frame 4 close to one end of the first frame 1. The first connecting column 7 is arranged on the bottom surface of the second frame 2 close to one end of the first frame 1, and the second connecting column 8 is arranged on the bottom surface of the fourth frame 4 close to one end of the first frame 1. The first connecting column 7 and the second connecting column 8 are used to connect with the bottom plate of the battery box.

[0059] The working principle of the roller pressing frame is that: the top surfaces of the first frame 1, the second frame 2, the third frame 3 and the fourth frame 4 are all provided with mounting holes 00, the mounting holes 00 inject wax into the upper cavity, the outer surface of the first frame 1 is provided with a connecting hole 13 communicating with the first lower cavity 11, wax is injected into the first lower cavity 11 from the connecting hole 13, since the two ends of the third frame 3 are connected with the second frame 2 and the fourth frame 4 respectively and are internally communicated, the second lower cavity 21 is injected with wax from the first hoisting hole 23, the wax will flow into the third lower cavity 31 and the fourth lower cavity 41 in turn from the second lower cavity 21, and through the mounting holes 00, the connecting hole 13 and the first hoisting hole 23 which are originally needed, the wax injection of the internal cavities of the entire roller pressing frame can be realized, internal rusting is avoided, and the service life and strength of the product are improved.

[0060] Based on the same concept, the second aspect of the utility model provides a battery box, which comprises a bottom plate and the roller pressing frame of the first aspect, and the bottom plate is connected with the roller pressing frame to form a box body with an open top surface.

[0061] The battery box provided in the embodiment can realize the wax injection of the internal cavities of the entire roller pressing frame through the mounting holes 00, the connecting hole 13 and the first hoisting hole 23 which are originally needed, internal rusting is avoided, and the service life and strength of the product are improved.

[0062] The above only describes the preferred embodiments of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A roll frame, characterized in that, The utility model relates to a kind of frame, including the first frame (1) of the section of "day" shape and the first frame (1) of the top surface of being equipped with mounting hole (00), second frame (2), third frame (3) and fourth frame (4), the two ends of the first frame (1) are connected with the inner side wall of the second frame (2) and the inner side wall of the fourth frame (4) respectively, the two ends of the third frame (3) are connected with the second frame (2) and the fourth frame (4) respectively and inside intercommunication, wherein: The inner wall of the first frame (1) is equipped with first lower cavity (11), and the outer side of the first frame (1) is equipped with connecting hole (13) intercommunicating the first lower cavity (11). The inner wall of the second frame (2) is equipped with second lower cavity (21), and the outer side is equipped with first hoisting hole (23) leading to the second lower cavity (21).

2. The roll press frame of claim 1, wherein, The inner side of the second frame (2) is equipped with first process hole (24) intercommunicating the second lower cavity (21) and the first lower cavity (11), and the end surface of the second frame (2) close to the first frame (1) is equipped with first wax injection hole (25) intercommunicating the second lower cavity (21).

3. The roll press frame of claim 2, wherein, The inner wall of the first frame (1) is also equipped with first upper cavity (12), and the inner wall of the second frame (2) is also equipped with second upper cavity (22). The inner side of the second frame (2) is also equipped with second process hole (26) intercommunicating the second upper cavity (22) and the first upper cavity (12), and the end surface of the second frame (2) close to the first frame (1) is equipped with second wax injection hole (27) intercommunicating the second upper cavity (22).

4. The roll press frame of claim 1, wherein, The inner wall of the fourth frame (4) is equipped with fourth lower cavity (41), and the inner side is equipped with third process hole (43) intercommunicating the fourth lower cavity (41) and the first lower cavity (11);The end surface of the fourth frame (4) close to the first frame (1) is equipped with third wax injection hole (44) intercommunicating the fourth lower cavity (41).

5. The roll press frame of claim 4, wherein, The outer side of the fourth frame (4) is equipped with second hoisting hole (45) intercommunicating the fourth lower cavity (41).

6. The roll press frame of claim 1, wherein, The two ends of the first frame (1) are connected using vertical tailor-welded connection with the second frame (2) and the fourth frame (4), and the two ends of the third frame (3) are connected using 45° tailor-welded connection with the second frame (2) and the fourth frame (4) respectively.

7. The roll press frame of claim 6, wherein, It also includes first edge beam (5), and the outer side of the first edge beam (5) is welded with the inner side of the first frame (1), and the two end surfaces are welded with the second frame (2) and the fourth frame (4) respectively.

8. The roll press frame of claim 7, wherein, It also includes second edge beam (6), and the outer side of the second edge beam (6) is welded with the inner side of the third frame (3), and the two end surfaces are welded with the second frame (2) and the fourth frame (4) respectively.

9. The roll press frame of claim 1, wherein, The inner wall of the third frame (3) is equipped with third lower cavity (31), and the outer side of the third frame (3) is equipped with fourth process hole (33) respectively, and the fourth process hole (33) intercommunicates the third lower cavity (31).

10. A battery box characterized by A roll frame as claimed in any one of claims 1 to 9, wherein the roll frame is connected to a base plate. A roll frame as claimed in any one of claims 1 to 9, wherein the roll frame is connected to a base plate.

Images