Frameless module forming device

Abstract

The utility model discloses a frameless module forming device, which relates to the field of lithium battery module forming and comprises a bottom plate component and a positioning component. The bottom plate assembly comprises a bottom plate, a limiting plate, an extrusion plate and a transmission mechanism, the limiting plate and the extrusion plate are both arranged on the bottom plate, and the transmission mechanism can drive the extrusion plate to move in the direction close to or away from the limiting plate; the positioning assembly comprises a stop block, and the stop block can move in the moving direction of the extrusion plate and is positioned on the bottom plate; a module of the frameless module forming device for extrusion forming comprises liquid cooling plates and battery cells, and the module comprises a plurality of groups of liquid cooling plates and battery cells which are sequentially arranged in the length direction. The utility model has the advantage that the spacing of the liquid cooling plates between adjacent groups is ensured to be constant when the modules are stacked and extruded step by step.

Description

Technical Field

[0001] The utility model relates to the field of lithium battery module forming, in particular to a borderless module forming device. Background Art

[0002] With the rapid development of the new energy vehicle industry, the demand for lithium batteries is increasing day by day, and the requirement for the energy density of battery modules is getting higher and higher. In the current technological development, the heat dissipation effect of borderless modules with high energy density is not significant, and potential safety hazards are likely to occur. At the same time, during the extrusion molding process of the module, due to the inability to control the distance between the liquid cooling plates, problems such as inaccurate installation of the heat conduction module occur. For example, the patent document with the publication number CN218887256U discloses a battery module extrusion device, including a carrier table and a positioning plate, a limiting member, an extrusion member, and a vacuum adsorption table installed on the carrier table. The battery module is extruded by the extrusion member, and the device cannot control the distance between the liquid cooling plates of the battery module during the extrusion process. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to control the distance between the liquid cooling plates of the battery module during the extrusion process.

[0004] The utility model solves the above technical problems through the following technical means: a borderless module forming device, including a bottom plate assembly and a positioning assembly; the bottom plate assembly includes a bottom plate, a limiting plate, an extrusion plate, and a transmission mechanism. The limiting plate and the extrusion plate are both arranged on the bottom plate, and the transmission mechanism can drive the extrusion plate to move in a direction close to or away from the limiting plate; the positioning assembly includes a blocking block, and the blocking block can move along the moving direction of the extrusion plate and be positioned on the bottom plate; the module for extrusion molding by the borderless module forming device includes a liquid cooling plate and an electric core, and the module includes multiple groups of liquid cooling plates and electric cores arranged in sequence along the length direction.

[0005] The blocking block can indicate the position where the extrusion plate reaches the extrusion position, so that each group of liquid cooling plates and electric cores can be extruded to the specified length, ensuring that the distance between the liquid cooling plates in adjacent groups is constant during the step-by-step stacking and extrusion of the module, effectively improving the effective utilization rate of the structural adhesive between the liquid cooling plate and the electric core, and saving material costs.

[0006] As an optimized technical solution, a pressure sensor is installed on the extrusion plate.

[0007] The real-time monitoring of the extrusion pressure can be realized through the pressure sensor to prevent damage to the module due to excessive pressure.

[0008] As an optimized technical solution, the transmission mechanism is arranged below the bottom plate, and the bottom plate is provided with a connection groove penetrating from the top surface to the bottom surface. The extrusion plate passes through the connection groove and is fixedly connected to the moving end of the transmission mechanism.

[0009] The transmission mechanism and the extrusion part are respectively arranged on the upper and lower sides of the bottom plate, making the structure more compact.

[0010] As an optimized technical solution, an extrusion sliding guide rail is fixedly connected to the bottom surface of the bottom plate, a slider is fixedly connected to the extrusion plate, and the slider is slidably matched with the extrusion sliding guide rail.

[0011] The accurate guiding effect on the extrusion plate can be realized through the extrusion sliding guide rail.

[0012] As an optimized technical solution, the positioning component further includes a limit sliding guide rail, the limit sliding guide rail is fixedly connected to the top surface of the bottom plate and the length direction is parallel to the moving direction of the extrusion plate, and the blocking block is slidably matched with the limit sliding guide rail.

[0013] The accurate guiding effect on the blocking block can be realized through the sliding limit guide rail.

[0014] As an optimized technical solution, the positioning component further includes a positioning pin, a plurality of pin holes are arranged at intervals along the length direction of the limit sliding guide rail on the bottom plate, the distance between adjacent pin holes is a specified length, and the positioning pin can pass through the blocking block and be inserted into the pin hole.

[0015] By inserting the positioning pin into the pin hole at the specified position, the position of the blocking block can be accurately positioned, so that each group of liquid cooling plates and battery cells can be extruded to the specified length.

[0016] As an optimized technical solution, the blocking block can be fixedly connected to the limit sliding guide rail through bolts.

[0017] After the blocking block moves to the specified position, it is fixedly connected to the limit sliding guide rail through bolts to achieve more stable positioning.

[0018] As an optimized technical solution, the transmission mechanism includes a manual screw rod transmission mechanism.

[0019] Rotating the handle of the manual screw rod can drive the extrusion plate to move through the moving block threadedly connected to the screw rod, which is convenient to use.

[0020] As an optimized technical solution, multiple battery cells in the module are arranged in a row, and liquid cooling plates are arranged at the gaps between adjacent battery cells and on the outer sides of the battery cells at both ends of the row.

[0021] By the way of arranging the battery cells and the liquid cooling plates in an interval and stacked manner, the problem that the high energy density module cannot dissipate heat safely is solved, and the efficient heat dissipation function of the high energy density module is realized.

[0022] As an optimized technical solution, the module further includes a heat conduction module, and the heat conduction module is installed between adjacent liquid cooling plates.

[0023] Heat conduction between each liquid cooling plate can be achieved through the heat conduction module, further improving the heat dissipation effect. A certain distance between adjacent liquid cooling plates also facilitates the installation of the heat conduction module. Description of the Drawings

[0024] Figure 1 It is a schematic structural diagram of a frameless module forming device according to an embodiment of the present invention.

[0025] Figure 2 It is a schematic structural diagram of a bottom plate assembly according to an embodiment of the present invention.

[0026] Figure 3 It is a schematic structural diagram of a module according to an embodiment of the present invention.

[0027] Figure 4 It is a schematic structural diagram of a positioning assembly according to an embodiment of the present invention.

[0028] Figure 5 It is a flowchart of a frameless module forming method according to an embodiment of the present invention. Detailed Embodiments

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0030] As Figures 1 to 4 shown, an embodiment of the present invention discloses a frameless module forming device, including a bottom plate assembly 1 and a positioning assembly 3. The frameless module forming device is used for the extrusion forming of a module 2.

[0031] The bottom plate assembly 1 includes a bottom plate 11, a limiting plate 12, an extrusion plate 13, a transmission mechanism 14, a connection groove 15, an extrusion sliding guide rail (not shown in the figure) and a slider (not shown in the figure); the limiting plate 12 is fixedly connected to the top surface of the bottom plate 11, and the transmission mechanism 14 can drive the extrusion plate 13 to move on the top surface of the bottom plate 11 in a direction close to or away from the bottom plate 11. The distance of the extrusion plate 13 is adjustable to realize the shaping extrusion of modules with different lengths; a pressure sensor is installed on the extrusion plate 13 to realize the real-time monitoring of the extrusion pressure and prevent the module 3 from being damaged due to excessive pressure; the transmission mechanism 14 is arranged below the bottom plate 11, and a connection groove 15 penetrating from the top surface to the bottom surface is provided on the bottom plate 11. The extrusion plate 13 passes through the connection groove 15 and is fixedly connected to the moving end of the transmission mechanism 14; the transmission mechanism 14 adopts a manual screw rod transmission mechanism. By rotating the screw rod of the transmission mechanism 14 with a handle, the extrusion plate 13 can be driven to move to realize the extrusion of the module 3; the bottom surface of the bottom plate is fixedly connected with an extrusion sliding guide rail, and the extrusion plate 13 is fixedly connected with a slider. The slider is slidably matched with the extrusion sliding guide rail to realize the precise guiding function.

[0032] The module 2 includes a liquid cooling plate 21, a battery cell 22 and a heat conduction module 23; the module 2 includes multiple groups of liquid cooling plates 21 and battery cells 22 arranged in sequence along the length direction. A plurality of battery cells 22 are arranged in a row, and liquid cooling plates 21 are arranged on both sides of the gaps between adjacent battery cells 22 and on the outer sides of the battery cells 22 at both ends of the row. Both sides of each battery cell 22 are pasted on the liquid cooling plate 21 by glue; a heat conduction module 23 is installed between adjacent liquid cooling plates 21 to realize the heat conduction between each liquid cooling plate 21.

[0033] The positioning assembly 3 includes a limiting sliding guide rail 31, a blocking block 32 and a positioning pin 33; the limiting sliding guide rail 31 is fixedly connected to the top surface of the bottom plate 11 and the length direction is parallel to the moving direction of the extrusion plate 13. The blocking block 32 is slidably matched with the limiting sliding guide rail 31 to realize the movement of the blocking block 32 along the moving direction of the extrusion plate 13; a plurality of pin holes are provided on the bottom plate 11 at intervals along the length direction of the limiting sliding guide rail 31, and the distance between adjacent pin holes is a specified length; the positioning pin 33 can pass through the blocking block 32 and be inserted into the pin hole to realize the positioning of the blocking block 32 on the bottom plate 11; the extrusion in-place position of the extrusion plate 13 can be indicated by the blocking block 32 to realize that each group of liquid cooling plates 21 and battery cells 22 can be extruded to the specified length; the blocking block 32 can be fixedly connected with the limiting sliding guide rail 31 through a bolt to realize more stable positioning.

[0034] As Figure 5 shown, the borderless module forming method using the borderless module forming device includes the following steps:

[0035] S1 Place the first liquid cooling plate 21 against the side of the limiting plate 12 facing the extrusion plate 13.

[0036] S2 Glue both sides of the first battery cell 22 and paste one side of it on the first liquid cooling plate 21;

[0037] S3 Place the second liquid cooling plate 21 and paste it on the other side of the first battery cell 22 to complete the stacking of the first group of liquid cooling plates 21 and battery cells 22;

[0038] S4 Move the blocking block 32 along the limit sliding guide 31 to the first positioning position and fix it with the positioning pin 33, then drive the pressing plate 13 to move through the transmission mechanism 14 to press the first group of liquid cooling plates 21 and battery cells 22 until the edges of the first group of liquid cooling plates 21 and battery cells 22 reach the edge of the blocking block 32 to make it reach the specified length;

[0039] S5 Stack, paste and press the remaining groups of liquid cooling plates 21 and battery cells 22 in sequence according to the operations in steps S2 to S4;

[0040] S6 Install the heat conduction module 23 between adjacent liquid cooling plates 21.

[0041] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A frameless modular molding device, characterized in that: It includes a base plate assembly and a positioning assembly; the base plate assembly includes a base plate, a limit plate, an extrusion plate and a transmission mechanism, the limit plate and the extrusion plate are both arranged on the base plate, and the transmission mechanism can drive the extrusion plate to move in a direction close to or away from the limit plate; the positioning assembly includes a blocking block, and the blocking block can move along the moving direction of the extrusion plate and be positioned on the base plate; the module used for extrusion molding of the frameless modular molding device includes a liquid cooling plate and a battery cell, and the module includes a plurality of groups of liquid cooling plates and battery cells arranged in sequence along the length direction.

2. The frameless modular molding device according to claim 1, characterized in that: A pressure sensor is installed on the extrusion plate.

3. The frameless modular molding device according to claim 1, characterized in that: The transmission mechanism is arranged below the bottom plate. The bottom plate is provided with a connection groove which runs from the top surface to the bottom surface. The extrusion plate passes through the connection groove and is fixedly connected with the moving end of the transmission mechanism.

4. The frameless modular molding device according to claim 1, characterized in that: The bottom plate is fixedly connected with an extrusion sliding guide rail, the extrusion plate is fixedly connected with a sliding block, and the sliding block is slidably matched with the extrusion sliding guide rail.

5. The frameless modular molding device according to claim 1, characterized in that: The positioning assembly also includes a limiting sliding guide rail, which is fixedly connected to the top surface of the bottom plate and has a length direction parallel to the moving direction of the extrusion plate, and the blocking block is slidably matched with the limiting sliding guide rail.

6. The frameless modular molding device according to claim 5, characterized in that: The positioning assembly also includes a positioning pin. A plurality of pin holes are provided on the bottom plate along the length direction of the position-limiting sliding guide rail at intervals. The spacing between adjacent pin holes is a specified length. The positioning pin can pass through the blocking block and be inserted into the pin hole.

7. The frameless modular molding device according to claim 5, characterized in that: The blocking block can be fixedly connected to the position-limiting sliding guide rail by means of bolts.

8. The frameless modular molding device according to claim 1, characterized in that: The transmission mechanism comprises a manual screw transmission mechanism.

9. The frameless modular molding device according to claim 1, characterized in that: A plurality of battery cells in the module are arranged in a row, and liquid cooling plates are arranged in the gaps between adjacent battery cells and on the outer sides of the battery cells at both ends of a row.

10. The frameless modular molding device according to claim 9, characterized in that: The module also includes a heat conduction module, and the heat conduction module is installed between adjacent liquid cooling plates.

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