A battery box body, energy storage battery plug box and battery cluster

Abstract

The utility model provides a battery box body, an energy storage battery plug-in box and a battery cluster, belonging to the technical field of energy storage batteries. The battery box body includes a front plate, a rear plate and two left and right side plates. The front plate is provided with a mounting structure for installing an exhaust device. The side plate and / or the rear plate are provided with air inlets. The side plates are used to enclose a front-to-back through-through main air inlet duct together with the corresponding battery module. The side plates are also provided with windshields extending up and down. The windshields include windshields convexly arranged on the inner wall of the side plates, and the width of the windshields in the left and right directions is smaller than the width of the main air inlet duct. The utility model utilizes the blocking effect of the windshield. When the exhaust device on the front plate is turned on, it can block all the airflow from gathering at the front end of the main air inlet duct, reduce the amount of airflow flowing to the front end, and enable the rear air inlet secondary duct in the battery module to obtain a certain amount of airflow, thereby balancing the airflow in the front and rear air inlet secondary ducts and improving the uniformity of the heat dissipation effect of the front and rear battery cells.

Description

Technical Field

[0001] The utility model relates to a battery box body, an energy storage battery plug-in box and a battery cluster, belonging to the technical field of energy storage batteries. Background Art

[0002] The energy storage battery box usually includes a box body and a battery module arranged in the box body. Since the battery module generates a large amount of heat when in use, the energy storage battery box generally includes a heat dissipation structure. For example, a PACK battery pack disclosed in the Chinese utility model patent with the authorization announcement number CN218887360U includes a box body, two rows of battery modules are arranged in the box body, a harmonica plate is arranged between adjacent cells of the battery module, an air inlet is opened on the side wall of the box body corresponding to the harmonica plate, a main air duct is formed between the two battery modules, and an exhaust fan is installed on the air outlet plate on the front side of the box body, so that the airflow enters each harmonica plate in the battery module through the air inlets on both sides, and then converges into the main air duct, and finally withdraws from the box body, and the battery cell is dissipated by air flow. In this scheme, a front-to-back through-air duct is formed between the battery module and the side wall of the box body, so after the exhaust fan is started, a large amount of airflow escapes from the shortest path and is directly drawn away from the front end of the air duct, resulting in a reduction in the air volume flowing through the harmonica plate, so the heat dissipation effect on the battery cell is not good.

[0003] In response to the above problems, a Chinese utility model patent with authorization announcement number CN219163515U discloses a heat dissipation structure of an energy storage battery plug-in box and an energy storage battery plug-in box, wherein the energy storage battery plug-in box includes a box body, the box body includes a bottom plate, a cover plate, a front plate, a rear plate and left and right side plates, two rows of battery modules are arranged in the box body, a main air inlet duct is formed between the outermost sides of the two rows of battery modules and the side plates of the box body, a secondary air inlet duct is formed between two adjacent battery cells in each row of battery modules, an air duct is arranged between the two rows of battery modules, two air ducts in the air duct are respectively connected to the secondary air inlet ducts on both sides, air inlets are respectively arranged on the rear plate of the box body and the left and right side plates, an exhaust device is arranged on the front plate of the box body, and baffles are respectively arranged at the front end of each main air inlet duct. Although this solution can prevent the airflow in the main air inlet duct from escaping directly from the front through the baffle, since the main air inlet duct is still connected from front to back and the exhaust device is located at the front end, when the exhaust device is started, the airflow in the main air inlet duct is instantly gathered to the front end, resulting in more airflow flowing through the front secondary air inlet duct and less airflow flowing through the rear, and uneven airflow in the front and rear secondary air inlet ducts, resulting in uneven heat dissipation of the battery cells. Utility Model Content

[0004] The purpose of the utility model is to provide a battery box body to solve the problem in the prior art that the main air inlet duct surrounded by the side panels of the box body and the battery module is connected front to back and the exhaust device is located on the front panel of the box body, and when the exhaust device is started, the air flow in the main air inlet duct is instantly gathered to the front end and sucked away, resulting in uneven heat dissipation effect of the front and rear battery cells in the battery module; the purpose of the utility model is also to provide an energy storage battery box and a battery cluster to solve the above-mentioned problem.

[0005] In order to achieve the above purpose, the battery box body in the utility model adopts the following technical solutions:

[0006] A battery box body comprises a front plate, a rear plate and two left and right side plates, the front plate is provided with a mounting structure for mounting an exhaust device, the side plates and / or the rear plate are provided with air inlets, the side plates are used to enclose together with corresponding battery modules a main air inlet duct running through front and back, the side plates are also provided with wind shields extending up and down, the wind shields comprise wind shield portions protruding from the inner walls of the side plates, the width of the wind shield portions in the left and right directions being smaller than the width of the main air inlet duct.

[0007] The beneficial effect of the above technical solution is that: the utility model proposes an improved battery box body, the improvement is that a windshield extending up and down is also provided on the side panel, the windshield includes a windshield portion protruding from the inner wall of the side panel, and because the windshield portion is protruding from the inner wall of the side panel, it can block the airflow flowing from the back to the front, and at the same time, the width of the windshield portion in the left and right directions is smaller than the width of the main air inlet duct, so that the airflow can pass through to the front side. Under the blocking effect of the windshield portion, the exhaust device on the front panel can block the airflow from gathering at the front end of the main air inlet duct when it is turned on, reducing the airflow flowing to the front end, so that the rear air inlet secondary duct in the battery module can also obtain a certain amount of airflow, thereby balancing the airflow in the front and rear air inlet secondary ducts and improving the uniformity of the heat dissipation effect of the front and rear battery cells.

[0008] Furthermore, the wind shield is a U-shaped plate structure, and the U-shaped opening of the wind shield is arranged toward the inner wall of the side plate.

[0009] Furthermore, the wind shield also includes flanges respectively connected to the front and rear sides of the U-shaped opening, and the flanges constitute a fixing portion for fixing the wind shield to the inner wall of the side plate.

[0010] Furthermore, the flange is fixed to the inner wall of the side plate by welding or bonding.

[0011] Furthermore, the windshield member is a windshield plate formed by integrally bending a plate.

[0012] Further, the length of the wind shielding portion in the front-rear direction is greater than the width thereof in the left-right direction.

[0013] Furthermore, the side panel provided with the wind shield is provided with the air inlet, and the air inlet is located at the rear side of the wind shield.

[0014] Furthermore, the wind shield is arranged on the inner wall of the front half of the side panel.

[0015] In order to achieve the above purpose, the energy storage battery box in the utility model adopts the following technical solutions:

[0016] An energy storage battery plug-in box comprises a box body and a battery module arranged in the box body, the box body comprises a front plate, a rear plate and two left and right side plates, the front plate is provided with a mounting structure for mounting an exhaust device, the side plate and / or the rear plate are provided with air inlets, the side plates are used to enclose together with the corresponding battery modules to form a main air inlet duct that passes through front and back, the side plates are also provided with wind shields extending up and down, the wind shields comprise wind shield portions protruding from the inner walls of the side plates, the width of the wind shield portions in the left and right directions is smaller than the width of the main air inlet duct.

[0017] The beneficial effect of the above technical solution is that: the utility model proposes an improved energy storage battery box, the improvement is that a windshield extending up and down is also provided on the side panel of the box body, the windshield includes a windshield portion protruding from the inner wall of the side panel, and because the windshield portion is protruding from the inner wall of the side panel, it can block the airflow flowing from the back to the front, and at the same time, the width of the windshield portion in the left and right directions is smaller than the width of the main air inlet duct, so that the airflow can pass through to the front side. Under the blocking effect of the windshield portion, the exhaust device on the front panel can block the airflow from gathering at the front end of the main air inlet duct when it is turned on, reducing the airflow flowing to the front end, so that the rear air inlet secondary duct in the battery module can also obtain a certain amount of airflow, thereby balancing the airflow in the front and rear air inlet secondary ducts and improving the uniformity of the heat dissipation effect of the front and rear battery cells.

[0018] Furthermore, the wind shield is a U-shaped plate structure, and the U-shaped opening of the wind shield is arranged toward the inner wall of the side plate.

[0019] Furthermore, the wind shield also includes flanges respectively connected to the front and rear sides of the U-shaped opening, and the flanges constitute a fixing portion for fixing the wind shield to the inner wall of the side plate.

[0020] Furthermore, the flange is fixed to the inner wall of the side plate by welding or bonding.

[0021] Furthermore, the windshield member is a windshield plate formed by integrally bending a plate.

[0022] Further, the length of the wind shielding portion in the front-rear direction is greater than the width thereof in the left-right direction.

[0023] Furthermore, the side panel provided with the wind shield is provided with the air inlet, and the air inlet is located at the rear side of the wind shield.

[0024] Furthermore, the wind shield is arranged on the inner wall of the front half of the side panel.

[0025] In order to achieve the above-mentioned purpose, the battery cluster in the utility model adopts the following technical solutions:

[0026] A battery cluster comprises a cluster frame and an energy storage battery plug-in box mounted on the cluster frame, the energy storage battery plug-in box comprises a box body and a battery module arranged in the box body, the box body comprises a front plate, a rear plate and two left and right side plates, the front plate is provided with a mounting structure for installing an exhaust device, the side plate and / or the rear plate are provided with air inlets, the side plates are used to enclose together with the corresponding battery modules to form a main air inlet duct that passes through front and back, the side plates are also provided with wind shields extending up and down, the wind shields comprise wind shields protruding from the inner walls of the side plates, the width of the wind shields in the left and right directions is smaller than the width of the main air inlet duct.

[0027] The beneficial effect of the above technical solution is that: the utility model proposes an improved battery cluster, the improvement is that the side panels of the energy storage battery box are also provided with wind shields extending up and down, the wind shields include wind shields protruding from the inner walls of the side panels, and since the wind shields protrude from the inner walls of the side panels, the airflow flowing from the back to the front can be blocked, and at the same time, the width of the wind shield in the left and right directions is smaller than the width of the main air inlet duct, so that the airflow can pass through and flow to the front side. Under the blocking effect of the wind shield, the exhaust device on the front panel can block the airflow from gathering at the front end of the main air inlet duct when it is turned on, reducing the airflow flowing to the front end, so that the rear air inlet secondary duct in the battery module can also obtain a certain amount of airflow, thereby balancing the airflow in the front and rear air inlet secondary ducts and improving the uniformity of the heat dissipation effect of the front and rear battery cells.

[0028] Furthermore, the wind shield is a U-shaped plate structure, and the U-shaped opening of the wind shield is arranged toward the inner wall of the side plate.

[0029] Furthermore, the wind shield also includes flanges respectively connected to the front and rear sides of the U-shaped opening, and the flanges constitute a fixing portion for fixing the wind shield to the inner wall of the side plate.

[0030] Furthermore, the flange is fixed to the inner wall of the side plate by welding or bonding.

[0031] Furthermore, the windshield member is a windshield plate formed by integrally bending a plate.

[0032] Further, the length of the wind shielding portion in the front-rear direction is greater than the width thereof in the left-right direction.

[0033] Furthermore, the side panel provided with the wind shield is provided with the air inlet, and the air inlet is located at the rear side of the wind shield.

[0034] Furthermore, the wind shield is arranged on the inner wall of the front half of the side panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 A three-dimensional diagram of a battery box body embodiment of the utility model from one viewing angle;

[0036] Figure 2 A top view of a battery box body embodiment of the utility model;

[0037] Figure 3 A three-dimensional diagram of another perspective of the battery box body embodiment of the utility model;

[0038] Figure 4 for Figure 3 A partial enlarged view of the

[0039] Figure 5 It is a three-dimensional diagram of the wind shield in the battery box embodiment of the utility model.

[0040] In the figure: 1, front plate; 2, rear plate; 21, rear air inlet; 3, left side plate; 31, left side air inlet; 4, right side plate; 41, right side air inlet; 5, bottom plate; 6, left side wind shield; 7, right side wind shield; 71, wind shield part; 72, flange. DETAILED DESCRIPTION

[0041] The features and performance of the present invention are further described in detail below in conjunction with the embodiments.

[0042] In view of the technical problems existing in the prior art, the basic technical concept of the utility model is to respectively fix wind shields on the left and right side panels of the battery box body, and the wind shields have a wind shield portion protruding from the inner wall of the side panel, and the wind shield portion can block the airflow flowing from the back to the front. At the same time, the width of the wind shield portion in the left and right directions is sufficient to allow the airflow to pass through and flow to the front side. Under the blocking effect of the wind shield portion, the exhaust device on the front panel can block the airflow from gathering at the front end of the main air inlet duct when it is turned on, reducing the airflow flowing to the front end, so that the rear air inlet secondary duct in the battery module can also obtain a certain amount of airflow, thereby balancing the airflow in the front and rear air inlet secondary ducts and improving the uniformity of the heat dissipation effect of the front and rear battery cells.

[0043] Embodiment of the battery box body in the utility model:

[0044] like Figure 1 , Figure 2 and Figure 3As shown, the battery box body includes a front plate 1, a rear plate 2, a left side plate 3, a right side plate 4 and a bottom plate 5. The front plate 1 is provided with a mounting structure for mounting an exhaust device, and the mounting structure is located in the middle of the front plate 1, specifically a reserved window and a plurality of mounting holes arranged around the window. The left side plate 3, the right side plate 4 and the bottom plate 5 are respectively provided with air inlets for external airflow to enter the box body, such as a left side air inlet 31 on the left side plate 3, a right side air inlet 41 on the right side plate 4, and a rear side air inlet 21 on the rear plate 2, wherein the left side air inlet 31 and the right side air inlet 41 are symmetrically arranged, and the left side air inlet 31 and the right side air inlet 41 are respectively arranged in multiple rows along the front-to-back direction, and the left side air inlet 31 and the right side air inlet 41 are mainly concentrated in the middle and rear sides of the side plates where they are located.

[0045] The rear air inlet 21 is concentrated on the left and right ends of the rear panel 2. This is because during assembly, two rows of battery modules are arranged side by side in the box body. The left row of battery modules and the left side panel 3 together form a left main air inlet duct that runs front to back, and the right row of battery modules and the right side panel 4 together form a right main air inlet duct that runs front to back. When the exhaust device is turned on, the rear air inlet 21 is set close to the end to facilitate air intake.

[0046] In the utility model, wind shields extending up and down are respectively provided on the left side plate 3 and the right side plate 4. The left side plate 3 is provided with a left side wind shield 6, and the right side plate 4 is provided with a right side wind shield 7. The left side wind shield 6 and the right side wind shield 7 are also arranged symmetrically. The structures and sizes of the two wind shields are the same, and both are wind shields formed by integrally bending the plates.

[0047] Take the right windshield 7 as an example. Figure 4 and Figure 5 As shown, the right windshield 7 includes a windshield 71 protruding from the inner wall of the right side plate 4. Under the blocking effect of the windshield 71, the exhaust device on the front plate 1 can block the airflow from gathering at the front end of the right main air inlet duct when it is turned on, reducing the amount of air flowing to the front end, so that the rear secondary air inlet duct in the battery module can also obtain a certain amount of airflow, thereby balancing the airflow in the front and rear secondary air inlet ducts and improving the uniformity of the heat dissipation effect of the front and rear battery cells. Of course, in order to ensure that the airflow can pass from the back to the front, the width of the windshield 71 in the left and right direction is smaller than the width of the right main air inlet duct. The specific width of the windshield 71 is determined according to the size of the right main air inlet duct and the windshield effect to be obtained.

[0048] Furthermore, the windshield 71 is a U-shaped plate structure, and the U-shaped opening of the windshield 71 is arranged toward the inner wall of the right side plate 4. The windshield 71 is equivalent to a hollow structure, so that while ensuring the windshield function, it can also take into account lightweight.

[0049] Furthermore, the right windshield 7 also includes flanges 72 connected to the front and rear sides of the U-shaped opening, respectively. The flanges 72 constitute a fixing portion for fixing the right windshield 7 to the inner wall of the right side plate 4, thereby facilitating the fixing between the windshield and the side plate. Since the windshield portion 71 is subjected to wind force during use, the use of a plate integrally bent and formed can ensure its overall structural strength. At the same time, in order to ensure that the right windshield 7 is firmly fixed, the flanges 72 are welded and fixed to the inner wall of the right side plate 4.

[0050] Furthermore, in order to ensure that the wind shield 71 has a certain wind shielding ability, the length of the wind shield 71 in the front-to-back direction is greater than its width in the left-to-right direction. The specific length dimension is determined according to the size of the right side main air inlet duct, the position of the wind shield 71 and the required wind shielding effect.

[0051] Furthermore, if Figure 1 and Figure 3 As shown, the right windshield 7 is located in front of all the right air inlets 41, that is, all the right air inlets 41 are located in the rear of the right windshield 7, ensuring that all airflow enters from the rear, and then flows to the front after being blocked by the right windshield 7, so as to facilitate obtaining the ideal effect of balancing the front and rear airflow through the position setting of the right windshield 7. Specifically in this embodiment, the right windshield 7 is located on the inner wall of the front half of the right side plate 4. If it is too far back, it will affect the airflow at the front, and if it is too far forward, it will not achieve the effect of balancing the airflow. Specifically, when arranging, it is necessary to consider the overall size of the right main air inlet duct and the position of the right air inlet 41. Generally, the right windshield 7 should be at least one battery cell wide away from the right air inlet 41 at the front.

[0052] The arrangement and related effects of the left wind shield 6 are the same as those of the right wind shield 7 , and will not be repeated in the present invention.

[0053] In other embodiments of the battery box body: depending on the specific situation, the wind shield can also be arranged on the inner wall in the middle of the side panel.

[0054] In other embodiments of the battery box body: depending on the specific situation, an air inlet can also be opened on the side panel in front of the wind shield. At this time, the air flow on the front and rear sides of the wind shield can be balanced by controlling the size and number of the front air inlet.

[0055] In other embodiments of the battery box body: the length of the wind shield in the front-to-back direction may be equal to the width of the wind shield in the left-to-right direction.

[0056] In other embodiments of the battery box body: the wind shield may also be an integral injection-molded part. Of course, in other embodiments, it may also be a welded part.

[0057] In other embodiments of the battery box body: no matter how the wind shield is formed, the flange and the inner wall of the side panel can be fixed by bonding. Of course, in other embodiments, they can also be connected by bolts.

[0058] In other embodiments of the battery box body: when the wind shield is a U-shaped plate structure, the wind shield may not include a flange, and the edge of the U-shaped opening of the wind shield is directly welded or bonded to the inner wall of the side panel.

[0059] In other embodiments of the battery box body: the wind shield portion may also be solid, such as a solid plate with a rectangular cross-section. Of course, in other embodiments, the entire wind shield may be an L-shaped plate, and one edge of the L-shaped plate is fixed to the inner wall of the side panel.

[0060] In other embodiments of the battery box body: the air inlet may be opened only on the side panel, and no air inlet may be opened on the rear panel. Of course, in other embodiments, the air inlet may be opened only on the rear panel, and no air inlet may be opened on the side panel.

[0061] In other embodiments of the battery box body: when only one row of battery modules is arranged in the box body, a wind shield can be arranged only on the left side panel or the right side panel of the box body, and no wind shield is required on the other side panel. At this time, there is only one main air inlet duct in the box body.

[0062] The embodiment of the energy storage battery plug-in box in the utility model is as follows: the energy storage battery plug-in box comprises a box body and a battery module arranged in the box body, the battery module is arranged in two rows, a main air inlet duct is formed between the outermost sides of the two rows of battery modules and the side panels of the box body, a secondary air inlet duct is arranged between two adjacent battery cells in the battery module, and a converging air duct is between the two rows of battery modules, wherein the specific structure of the box body is the same as the battery box body in the above embodiment, and will not be repeated here.

[0063] An embodiment of a battery cluster in the utility model is as follows: the battery cluster includes a cluster frame and an energy storage battery plug-in box installed on the cluster frame, the energy storage battery plug-in box includes a box body and a battery module arranged in the box body, the battery modules are arranged in two rows, a main air inlet duct is formed between the outermost sides of the two rows of battery modules and the side panels of the box body, a secondary air inlet duct is arranged between two adjacent battery cells in the battery module, and a converging air duct is between the two rows of battery modules, wherein the specific structure of the box body is the same as the battery box body in the above embodiment, and will not be repeated here.

[0064] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The patent protection scope of the present invention shall be based on the claims. All equivalent structural changes made using the description and drawings of the present invention shall be included in the protection scope of the present invention.

Claims

1. A battery box body, comprising a front plate, a rear plate and two left and right side plates, wherein the front plate is provided with a mounting structure for mounting an exhaust device, and the side plates and / or the rear plate are provided with air inlets, and the side plates are used to form a front-to-back through-through main air inlet duct together with the corresponding battery modules, characterized in that: The side plate is also provided with a windshield extending up and down, the windshield comprising a windshield portion protruding from the inner wall of the side plate, and the width of the windshield portion in the left and right direction is smaller than the width of the main air inlet duct.

2. The battery box body according to claim 1, characterized in that: The wind shield is a U-shaped plate structure, and the U-shaped opening of the wind shield is arranged toward the inner wall of the side plate.

3. The battery box body according to claim 2, characterized in that: The wind shield also includes flanges connected to the front and rear sides of the U-shaped opening respectively, and the flanges constitute a fixing portion for fixing the wind shield to the inner wall of the side plate.

4. The battery box body according to claim 3, characterized in that: The flange is fixed to the inner wall of the side panel by welding or bonding.

5. The battery box body according to any one of claims 2 to 4, characterized in that: The windshield member is a windshield formed by integrally bending a plate.

6. The battery box body according to any one of claims 1 to 4, characterized in that: The length of the wind shielding portion in the front-rear direction is greater than the width thereof in the left-right direction.

7. The battery box body according to any one of claims 1 to 4, characterized in that: The side plate provided with the wind shield is provided with the air inlet, and the air inlet is located at the rear side of the wind shield.

8. The battery box body according to any one of claims 1 to 4, characterized in that: The wind shield is arranged on the inner wall of the front half section of the side plate.

9. An energy storage battery box, comprising a box body and a battery module arranged in the box body, characterized in that: The box body is a battery box body as described in any one of claims 1 to 8.

10. A battery cluster, comprising a cluster frame and an energy storage battery plug-in box mounted on the cluster frame, wherein the energy storage battery plug-in box comprises a box body and a battery module arranged in the box body, characterized in that: The box body is a battery box body as described in any one of claims 1 to 8.

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