Battery pack shell for automobile power battery

Abstract

The utility model relates to a battery pack shell for an automobile power battery, which relates to the technical field of automobile batteries and comprises an aluminum shell, a top plate is detachably arranged at the top of the aluminum shell, a plurality of wiring harness plates are arranged in the aluminum shell and are perpendicular to the top plate, wiring grooves are formed in the tops of the wiring harness plates, expansion sleeves are arranged in the wiring grooves, and the expansion sleeves are connected with the aluminum shell. A wire inserting opening is formed in the top of the expansion sleeve, an expansion cavity is formed in the expansion sleeve, an air nozzle is arranged on the expansion cavity in a communicating mode, a plurality of supporting plates are fixedly arranged at the bottom of the wire harness plate, the supporting plates are parallel to the top plate, the bottoms of the supporting plates are attached to the inner bottom wall of the aluminum shell, and a plurality of baffles are fixedly arranged on the supporting plates. The fixing device has the effects of improving the fixing efficiency of the wire harness in the battery pack and conveniently reducing the labor intensity of fixing the wire harness in the battery pack.

Description

Technical Field

[0001] This utility model relates to the field of automotive battery technology, and in particular to a battery pack housing for automotive power batteries. Background Technology

[0002] In today's new energy vehicle field, the design and manufacturing of power batteries is a crucial issue. A power battery pack is formed by assembling multiple modules, and a single module is composed of numerous battery cells. In the current battery pack design and assembly process, workers face an important task: routing the wiring harnesses according to established specifications and requirements. The layout and connection of the wiring harnesses are critical to the overall performance of the battery pack.

[0003] To ensure the stability and reliability of the wiring harness within the battery pack, workers typically use various fasteners, such as clips and cable ties, to secure it. However, securing the wiring harness requires installing a large number of clips and cable ties, necessitating a significant amount of repetitive manual work and thus reducing the efficiency of the wiring harness securing process. Utility Model Content

[0004] In order to improve the fixing efficiency of wiring harnesses inside the battery pack and reduce the labor intensity of fixing wiring harnesses inside the battery pack, this application provides a battery pack housing for automotive power batteries.

[0005] The battery pack housing for automotive power batteries provided in this application adopts the following technical solution:

[0006] A battery pack housing for automotive power batteries includes an aluminum shell with a detachable top plate. Several wiring harness plates are disposed within the aluminum shell, perpendicular to the top plate. A wiring channel is formed at the top of each wiring harness plate, and an expansion sleeve is provided within the wiring channel. A wiring insertion opening is formed at the top of the expansion sleeve, and an expansion cavity is formed within the expansion sleeve. An air nozzle is connected to the expansion cavity. Several support plates are fixedly disposed at the bottom of each wiring harness plate, parallel to the top plate. The bottom of the support plates is flush with the inner bottom wall of the aluminum shell, and several baffles are fixedly disposed on the support plates.

[0007] By adopting the above technical solution, a single module is placed on a support plate, and the baffle is made to fit against the side wall of the single module. This restricts the single module between the baffles, making it difficult for it to move. The gap between the baffles provides wiring space for the wire harness. When fixing the wire harness, the wire harness is first inserted into the expansion sleeve through the insertion opening. The width of the insertion opening is slightly smaller than the diameter of the wire harness, so that the expansion sleeve pre-fixes the wire harness, making it difficult for the wire harness located in the wiring groove to move. After all the wire harnesses are pre-fixed in the wiring groove, gas is injected into the expansion cavity through the air nozzle, causing the expansion sleeve to deform and tighten around the wire harness, thereby achieving the effect of fixing the wire harness. In this way, the number of fasteners used by the workers is reduced. The workers only need to insert the wire harness into the expansion sleeve through the insertion opening and then inject gas into the expansion cavity through the air nozzle. This reduces the need for workers to repeatedly install fasteners, reduces the labor intensity of fixing the wire harness in the battery pack, and improves the fixing efficiency of the wire harness in the battery pack.

[0008] Preferably, a plurality of connecting holes are formed through the top plate, and connecting bolts are installed in the connecting holes. A plurality of connecting grooves are formed on the top of the aluminum shell, and the connecting grooves are used for threaded connection with the connecting bolts.

[0009] By adopting the above technical solution, the top plate and the aluminum shell can be detachably connected by connecting bolts.

[0010] Preferably, the side wall of the wire harness plate has several wire routing holes that are connected to the wire routing grooves. The wire routing holes penetrate the top wall of the wire harness plate. The side wall of the expansion sleeve has several wire inlet openings that are connected to the wire insertion openings. The wire inlet openings penetrate the top of the expansion sleeve and are positioned opposite to the wire routing holes.

[0011] By adopting the above technical solution, the wiring hole and the inlet opening provide space for the wire harness, making it easier for the expansion sleeve to wrap the wire harness.

[0012] Preferably, an air supply branch pipe is provided through the wire harness plate, the top end of the air supply branch pipe is connected to the expansion chamber, the bottom end of the air supply branch pipe is connected to the main air supply pipe, and the main air supply pipe is connected to the air nozzle.

[0013] By adopting the above technical solution, the gas supply branch pipe and the gas supply main pipe connect the gas nozzle to the expansion chamber, which facilitates the intake and exhaust of gas in the expansion chamber.

[0014] Preferably, an air hole is provided at the bottom of the aluminum shell, the air nozzle is located inside the air hole, and a protective plug is detachably installed inside the air hole to seal the air hole.

[0015] By adopting the above technical solution, when gas is injected into the expansion chamber through the air nozzle, the protective plug is removed from the air hole, and then the air nozzle is connected to the air pumping equipment so that the gas enters the expansion chamber from the air nozzle.

[0016] Preferably, the inner wall of the air hole is provided with an internal thread groove, the outer wall of the protective plug is provided with an external thread groove, the external thread groove is threadedly connected to the internal thread groove, and a clearance groove is provided on the side of the protective plug away from the air nozzle, and a knob is fixedly installed in the clearance groove.

[0017] By adopting the above technical solution, the protective plug is threadedly connected to the air hole, and the knob makes it easy for the staff to rotate the protective plug.

[0018] Preferably, a sliding sleeve is fixedly installed inside the air hole. The sliding sleeve is located on the side of the protective plug facing the air nozzle. A corrugated pipe is installed between the air nozzle and the main air supply pipe. The corrugated pipe is slidably connected to the inner wall of the sliding sleeve.

[0019] By adopting the above technical solution, when the protective plug is installed in the air hole, the protective plug abuts against the air nozzle, and the bellows is in a compressed state. When the protective plug is removed from the air hole, the bellows is in an extended state, and the air nozzle extends out of the aluminum shell from the air hole, which facilitates the connection between the air nozzle and the air pumping equipment.

[0020] Preferably, the inner wall of the sliding sleeve is provided with several sliding grooves, a sliding block is slidably arranged in the sliding groove, the sliding block is fixedly connected to the bellows, and a sliding spring is fixedly arranged between the sliding block and the inner wall of the sliding groove.

[0021] By adopting the above technical solution, when the protective plug is installed in the air hole, the protective plug abuts against the air nozzle. At this time, the bellows and sliding spring are in a compressed state. When the protective plug is removed from the air hole, the bellows and sliding spring are in an extended state, allowing the air nozzle to extend out of the aluminum shell from the air hole, which facilitates the connection between the air nozzle and the air pumping equipment.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. By setting up aluminum shell, top plate, wire harness plate, wiring channel, expansion sleeve, wire insertion opening, expansion cavity, air nozzle, support plate and baffle, the number of workers performing repetitive installation of fasteners is reduced, the labor intensity of fixing the wire harness in the battery pack is reduced, and the fixing efficiency of the wire harness in the battery pack is improved.

[0024] 2. By setting up wiring holes and inlet openings, space is provided for the wire harness, making it easier for the expansion sleeve to wrap the wire harness;

[0025] 3. By setting a sliding sleeve and a bellows, it is easy to connect the air nozzle to the air pumping equipment. Attached Figure Description

[0026] Figure 1 This is a cross-sectional view of a battery pack housing for an automotive power battery according to an embodiment of this application.

[0027] Figure 2 yes Figure 1 Enlarged view of part A in the middle.

[0028] Figure 3 yes Figure 1 Enlarged view of section B.

[0029] Figure 4 This is a schematic diagram illustrating the positional relationship between the baffle and the aluminum shell in an embodiment of this application.

[0030] Figure 5 yes Figure 4 Enlarged view of section C.

[0031] Figure 6 This is a schematic diagram illustrating the positional relationship between the baffle and the wiring board in an embodiment of this application.

[0032] Figure 7 This is a cross-sectional view showing the positional relationship between the inlet opening and the expansion sleeve in the embodiments of this application.

[0033] Explanation of reference numerals in the attached drawings: 1. Aluminum shell; 11. Top plate; 2. Wiring harness plate; 21. Wiring trough; 22. Wiring hole; 3. Expansion sleeve; 31. Cable insertion opening; 32. Cable inlet opening; 33. Expansion chamber; 4. Air nozzle; 41. Air supply branch pipe; 42. Air supply main pipe; 5. Support plate; 51. Baffle; 6. Connecting bolt; 61. Connecting hole; 62. Connecting groove; 7. Air hole; 71. Internal thread groove; 8. Protective plug; 81. External thread groove; 82. Relief groove; 83. Knob; 9. Bellows; 91. Sliding sleeve; 92. Sliding block; 93. Sliding groove; 94. Sliding spring. Detailed Implementation

[0034] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0035] This application discloses a battery pack casing for automotive power batteries. (Refer to...) Figures 1 to 6 The system includes an aluminum shell 1, with a top plate 11 covering the top of the aluminum shell 1. Several connecting holes 61 are formed through the top plate 11, and connecting bolts 6 are installed within the connecting holes 61. Several connecting grooves 62 are formed on the top of the aluminum shell 1 for threaded connection with the connecting bolts 6. Several wire harness plates 2 are installed inside the aluminum shell 1, perpendicular to the top plate 11. Several support plates 5 are installed at the bottom of the wire harness plates 2, parallel to the top plate 11, and their bottoms are flush with the inner bottom wall of the aluminum shell 1. Several baffles 51 are installed on the support plates 5, perpendicular to the top plate 11. A single module is placed on the support plates 5, with the baffles 51 flush with the sidewalls of the single module, thus restricting the single module between the baffles 51 and preventing movement. The support plates 5 create a wiring gap between the module and the bottom of the aluminum shell 1, while the baffles 51 create wiring space on the sidewalls of the module, facilitating wire harness arrangement.

[0036] refer to Figures 1 to 7 A wiring harness plate 2 has a wiring groove 21 on its top. An expansion sleeve 3 is installed inside the wiring groove 21, and an expansion cavity 33 is formed inside the expansion sleeve 3. An air nozzle 4 is connected to the expansion cavity 33. Several wiring holes 22 are formed through the side wall of the wiring harness plate 2. The wiring holes 22 are interconnected with the wiring groove 21 and penetrate through the top wall of the wiring harness plate 2. An insertion opening 31 is formed on the top of the expansion sleeve 3, and several inlet openings 32 are formed on the side wall of the expansion sleeve 3. The inlet openings 32 are interconnected with the insertion openings 31 and penetrate through the top of the expansion sleeve 3. The inlet openings 32 are arranged opposite to the wiring holes 22, and the wiring holes 22 and inlet openings 32 provide clearance for the wiring harness, making it easier for the expansion sleeve 3 to wrap the wiring harness. When fixing the wiring harness, the wiring harness is first inserted into the expansion sleeve 3 through the insertion opening 31. The width of the insertion opening 31 is slightly smaller than the diameter of the wiring harness, so that the expansion sleeve 3 pre-fixes the wiring harness, making it difficult for the wiring harness located in the wiring groove 21 to move. After all the wire harnesses are pre-fixed in the wiring channel 21, gas is injected into the expansion chamber 33 through the air nozzle 4, causing the expansion sleeve 3 to deform and tighten around the wire harness, thus achieving the effect of fixing the wire harness. This method reduces the number of fasteners used by workers; workers only need to insert the wire harness into the expansion sleeve 3 through the insertion opening 31 and then inject gas into the expansion chamber 33 through the air nozzle 4. This reduces the need for workers to repeatedly install fasteners, lowers the labor intensity of fixing the wire harnesses inside the battery pack, and improves the fixing efficiency of the wire harnesses inside the battery pack.

[0037] Reference Figures 1 to 7 A gas supply branch pipe 41 is installed through the wire harness plate 2. The top end of the gas supply branch pipe 41 is connected to the expansion chamber 33, and the bottom end of the gas supply branch pipe 41 is connected to the main gas supply pipe 42. The main gas supply pipe 42 is connected to the air nozzle 4. An air hole 7 is opened at the bottom of the aluminum shell 1, and the air nozzle 4 is located in the air hole 7. When gas is injected into the expansion chamber 33 through the air nozzle 4, the air nozzle 4 is connected to the air pumping equipment, so that the gas enters the main gas supply pipe 42 from the air nozzle 4, and the gas in the main gas supply pipe 42 enters the expansion chamber 33 along the gas supply branch pipe 41.

[0038] refer to Figure 3 A protective plug 8 is installed on the side of the air nozzle 4 away from the main air supply pipe 42. An external threaded groove 81 is formed on the outer wall of the protective plug 8. An internal threaded groove 71 is formed on the inner wall of the air hole 7, and the external threaded groove 81 is threadedly connected to the internal threaded groove 71. A clearance groove 82 is formed on the side of the protective plug 8 away from the air nozzle 4, and a knob 83 is installed in the clearance groove 82. The protective plug 8 is threadedly connected to the air hole 7, thereby sealing the air hole 7. The knob 83 allows the operator to easily rotate the protective plug 8, thus facilitating its installation and removal.

[0039] Reference Figure 3A sliding sleeve 91 is installed inside the air hole 7, located between the internal threaded groove 71 and the main air supply pipe 42. Several sliding grooves 93 are formed on the inner wall of the sliding sleeve 91, and sliding blocks 92 are slidably disposed within each groove 93. A sliding spring 94 is installed between the sliding block 92 and the inner wall of the sliding groove 93. A bellows 9 is installed on each sliding block 92, connecting the air nozzle 4 to the main air supply pipe 42. When the protective plug 8 is installed inside the air hole 7, it abuts against the air nozzle 4. At this time, the bellows 9 and the sliding spring 94 are in a compressed state, and the air nozzle 4 is located inside the aluminum shell 1. When the protective plug 8 is removed from the air hole 7, the bellows 9 and the sliding spring 94 are in an extended state, allowing the air nozzle 4 to extend out of the aluminum shell 1 from the air hole 7, facilitating connection between the air nozzle 4 and the pumping equipment.

[0040] The implementation principle of a battery pack housing for automotive power batteries according to an embodiment of this application is as follows: When fixing the wiring harness, the wiring harness is first inserted into the expansion sleeve 3 through the insertion opening 31. The width of the insertion opening 31 is slightly smaller than the diameter of the wiring harness, thereby pre-fixing the wiring harness with the expansion sleeve 3, making it difficult for the wiring harness located in the wiring groove 21 to move. After all the wiring harnesses are pre-fixed in the wiring groove 21, gas is injected into the expansion cavity 33 through the air nozzle 4, causing the expansion sleeve 3 to deform and tightly hug the wiring harness, thereby achieving the effect of fixing the wiring harness. Through the above method, the number of fasteners used by the workers is reduced. The workers only need to insert the wiring harness into the expansion sleeve 3 through the insertion opening 31 and then inject gas into the expansion cavity 33 through the air nozzle 4. This reduces the need for workers to repeatedly install fasteners, reduces the labor intensity of fixing the wiring harness in the battery pack, and improves the fixing efficiency of the wiring harness in the battery pack.

[0041] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A battery pack housing for an automotive power battery, comprising an aluminum shell (1), wherein a top plate (11) is detachably disposed on the top of the aluminum shell (1), characterized in that: The aluminum shell (1) is provided with several wire harness plates (2), which are perpendicular to the top plate (11). The top of the wire harness plate (2) has a wiring groove (21), and the wiring groove (21) is provided with an expansion sleeve (3). The top of the expansion sleeve (3) has a wire insertion opening (31), and the expansion sleeve (3) has an expansion cavity (33). The expansion cavity (33) is connected to an air nozzle (4). The bottom of the wire harness plate (2) is fixedly provided with several support plates (5), which are parallel to the top plate (11). The bottom of the support plate (5) is attached to the inner bottom wall of the aluminum shell (1), and several baffles (51) are fixedly provided on the support plate (5).

2. The battery pack housing for automotive power batteries according to claim 1, characterized in that: A plurality of connecting holes (61) are provided through the top plate (11), and connecting bolts (6) are provided in the connecting holes (61). A plurality of connecting grooves (62) are provided on the top of the aluminum shell (1), and the connecting grooves (62) are used for threaded connection with the connecting bolts (6).

3. A battery pack housing for an automotive power battery according to claim 1, characterized in that: The wire harness plate (2) has several wire routing holes (22) through its side wall. The wire routing holes (22) are connected to the wire routing groove (21). The wire routing holes (22) penetrate the top wall of the wire harness plate (2). The expansion sleeve (3) has several wire inlet openings (32) through its side wall. The wire inlet openings (32) are connected to the wire insertion openings (31). The wire inlet openings (32) penetrate the top of the expansion sleeve (3). The wire inlet openings (32) are opposite to the wire routing holes (22).

4. A battery pack housing for an automotive power battery according to claim 1, characterized in that: A gas supply branch pipe (41) is installed through the wire harness plate (2). The top end of the gas supply branch pipe (41) is connected to the expansion chamber (33). The bottom end of the gas supply branch pipe (41) is connected to the main gas supply pipe (42). The main gas supply pipe (42) is connected to the air nozzle (4).

5. A battery pack housing for an automotive power battery according to claim 4, characterized in that: The aluminum shell (1) has an air hole (7) at the bottom, the air nozzle (4) is located inside the air hole (7), and a protective plug (8) is detachably installed inside the air hole (7) to seal the air hole (7).

6. A battery pack housing for an automotive power battery according to claim 5, characterized in that: The inner wall of the air hole (7) has an internal thread groove (71), and the outer wall of the protective plug (8) has an external thread groove (81). The external thread groove (81) is threadedly connected to the internal thread groove (71). The protective plug (8) has a relief groove (82) on the side away from the air nozzle (4). A knob (83) is fixedly installed in the relief groove (82).

7. A battery pack housing for an automotive power battery according to claim 5, characterized in that: A sliding sleeve (91) is fixedly installed inside the air hole (7). The sliding sleeve (91) is located on the side of the protective plug (8) facing the air nozzle (4). A corrugated pipe (9) is provided between the air nozzle (4) and the main air supply pipe (42). The corrugated pipe (9) is slidably connected to the inner wall of the sliding sleeve (91).

8. A battery pack housing for an automotive power battery according to claim 7, characterized in that: The inner wall of the sliding sleeve (91) has several sliding grooves (93), and a sliding block (92) is slidably disposed in the sliding groove (93). The sliding block (92) is fixedly connected to the bellows (9), and a sliding spring (94) is fixedly disposed between the sliding block (92) and the inner wall of the sliding groove (93).

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