Parking air conditioner power supply of large container truck

Abstract

The utility model relates to a parking air conditioner power supply of a large container truck. The parking air conditioner power supply comprises a lower shell, the lower shell is provided with an upper edge side ring, the side edge of an upper cover is provided with a sunken step, the sunken step is provided with a wiring terminal, the surface of the upper cover is provided with a sunken cavity, a hinge is fixed in the sunken cavity, and a rotatable handle is arranged on the hinge. A detachable battery pack support is arranged in a cavity formed after the lower shell and the upper cover are installed, the detachable battery pack support comprises a main frame body for containing a battery pack, a front baffle and a rear baffle are arranged on the two sides of the main frame body, and a BMS support is installed on the front baffle and the rear baffle. The detachable battery pack bracket is surrounded by independent baffles and the like and is fixed by screws, so that the battery pack is convenient to assemble, and the short-circuit risk caused by collision between the battery and the box body can be prevented to a great extent in a bumpy environment. The design of the sunken wiring terminal and the handle can reduce the redundant space, so that the power box can be easily placed in a narrow environment.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery technology field, concretely relates to the parking air conditioner power supply of large truck. BACKGROUND

[0002] For some large truck, long-distance transport industry drivers often need to work in extreme weather conditions, especially in the summer high temperature or winter cold environment. Parking air conditioner can provide comfortable rest environment, reduce fatigue and health problems caused by extreme temperature, so as to improve work efficiency and safety. All need to be equipped with parking air conditioner, the battery pack that provides power supply for parking air conditioner, its capacity is usually between 180Ah to 300Ah, parking air conditioner power (battery) generally needs larger capacity to support long time operation. And the driving force of parking air conditioner is lithium iron phosphate battery pack, lithium iron phosphate battery is a kind of lithium ion battery using lithium iron phosphate (LiFePO4) as positive material, carbon as negative material, single rated voltage is 3.2V, charging cutoff voltage is 3.6V-3.65V, lithium iron phosphate battery has the advantages of high working voltage, high energy density, long cycle life, good safety performance, small self-discharge rate and no memory effect.

[0003] The existing lithium iron phosphate battery pack for electric vehicles mainly consists of a shell and a lithium iron phosphate battery pack. The lithium iron phosphate battery pack is placed in the shell to protect the lithium iron phosphate battery pack.

[0004] For example, Chinese patent publication No. CN216624449U, patent title: a lithium iron phosphate battery pack for low-speed electric vehicle, it through "a lithium iron phosphate battery pack for low-speed electric vehicle, including the shell, the cavity is set up in the shell. The mounting seat is arranged on the inner wall of the bottom of the cavity, the mounting groove is set up in the mounting seat, the lithium iron phosphate battery pack device is arranged in the mounting groove, and the cross recess is set up on the side wall of the cavity, the buffer device is arranged in the cross recess, and the buffer device is connected with the lithium iron phosphate battery pack device on one side. The buffer device includes a cross fixed frame, a piston plate and a spring, three end faces of the cross fixed frame are provided with the piston plate, the other end face of the cross fixed frame penetrates out of the cross recess, and a connecting groove is set up on the other end face, a connecting rod is arranged in the connecting groove, the connecting rod is connected with the lithium iron phosphate battery pack device on one side, and the cross fixed frame is arranged in the cross recess, the piston plate is provided with the spring on one side, and the end of the spring away from the piston plate is connected with the inner wall of the cross recess.

[0005] The lithium iron phosphate battery pack device is supported through the cavity in the shell, is installed through the installation groove in the mounting seat, when the lithium iron phosphate battery pack device vibrates, the buffer device is used for damping in the cross recess, when vibrating, the connecting rod on the lithium iron phosphate battery pack device drives the cross-shaped fixing frame provided with the connecting groove to move horizontally and longitudinally, when horizontally and longitudinally vibrating, the cross-shaped fixing frame moves horizontally and longitudinally and then drives the piston plate to extrude the spring, so that the damping effect is achieved, the device can horizontally and longitudinally damp the lithium iron phosphate battery pack when the electric vehicle vibrates, and the service life of the lithium iron phosphate battery pack is prolonged.

[0006] However, the lithium iron phosphate battery pack is fixedly connected with the buffer device of the inner wall of the cavity, but the staff needs to complete the setting in the gap between the battery pack and the inner cavity during assembly, and an assembly process is added in the installation process, which brings troubles to production. Meanwhile, the wiring terminal and the handle of the existing battery pack are exposed on the upper surface of the battery pack, which affects the utilization rate of the installation space. The utility model discloses a lithium iron phosphate battery pack fixing device

[0007] The utility model discloses a lithium iron phosphate battery pack fixing device

[0008] In order to solve the above technical problems, the utility model is through the following technical measures realizes: a lithium iron phosphate battery pack fixing device, which is characterized by: including lower shell, the top of the lower shell is provided with the upper along side ring of recessed in, and the surface area of recessed in forms the step outer ring for placing the upper cover, the side of the upper cover is provided with the sunken step, the sunken step is provided with the positive terminal and the negative terminal, the surface of the upper cover is provided with the sunken cavity, the sunken cavity is fixed with the hinge, and the hinge is provided with the rotatable handle, the cavity formed after the lower shell and the upper cover are installed is provided with the detachable battery pack support, the detachable battery pack support includes the main frame of placing the battery pack, the both sides of the main frame are provided with the front baffle and the rear baffle, and the upper surface of the front baffle and the rear baffle is provided with the BMS support.

[0009] Compared with the prior art, the upper shell, the lower shell and the detachable battery pack support are all made of cold-rolled steel plates through sheet metal process, and can bear the large gravity of the battery pack itself. The detachable battery pack support is surrounded by an independent support, and is fixed between the main frame body by screws, facilitating the assembly of the battery pack, bringing convenience to production and assembly, and also greatly preventing the short circuit risk caused by the collision between the battery and the box in a bumpy environment. The positive and negative electrode terminals can withstand a large current of 300A, and can ensure the stable operation of the circuit. The design of the sunken wiring terminal and the sunken handle can reduce redundant space, so that the power box can be easily placed in a narrow environment.

[0010] As an improvement of the utility model, the side of the upper cover is provided with a first threaded hole, and the upper edge side ring of the lower shell is provided with a first mounting hole. The purpose of selecting this design is that the bolt passes through the first mounting hole and is threadedly connected with the first threaded hole to fixedly connect the lower shell and the upper cover.

[0011] As an improvement of the utility model, one end of the BMS support is provided with a slot hole. The purpose of selecting this design is that the slot hole can compensate for the assembly displacement and reduce the assembly stress of each fixed part.

[0012] As an improvement of the utility model, a bending part is arranged on the backstop. The purpose of selecting this design is that the bending part is used to fix the main frame body and the backstop and the BMS support.

[0013] As an improvement of the utility model, a second threaded hole is arranged on the bending part. The purpose of selecting this design is that the main frame body is fixed on the bending part by a bolt. BRIEF DESCRIPTION OF DRAWINGS

[0014] The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the application, and are incorporated herein for purposes of illustration. The embodiments of the present application, and the explanations given, serve to explain the application, and are not intended to limit the scope of the application.

[0015] In the drawings:

[0016] Figure 1 It is an exploded view of the power supply of the parking air conditioner of the large truck.

[0017] Figure 2 It is a perspective view of the upper cover.

[0018] Figure 3 It is an exploded view of the detachable battery pack support.

[0019] Figure 4 It is a perspective view of the lower shell.

[0020] Figure 5 The utility model discloses a large truck's parking air conditioner power supply's perspective view.

[0021] The figure mark is explained: 1, lower casing, 2, upper along side circle, 3, upper cover, 4, step outer circle, 5, sunken step, 6, positive connection terminal, 7, negative connection terminal, 8, sunken concave cavity, 9, hinge, 10, handle, 12, main frame, 13, front baffle, 14, rear baffle, 15, BMS support, 16, first threaded hole, 17, first mounting hole, 18, slot hole, 19, bending part, 20, second threaded hole. DETAILED DESCRIPTION

[0022] The preferred embodiments of the utility model are described below in combination with the drawings, and it should be understood that the preferred embodiments described here are only used for illustrating and explaining the utility model and are not used for limiting the utility model.

[0023] Example 1

[0024] Please refer to Figure 1 - 5.

[0025] The utility model provides a large truck's parking air conditioner power supply, including lower casing 1, the top of lower casing 1 is provided with the upper along side circle 2 of recessed, and the surface area of recessed is formed with the step outer circle 4 of placing upper cover 3.

[0026] In the embodiment of the utility model application, please refer to Figure 2 The right side of upper cover 3 is provided with sunken step 5, and positive connection terminal 6 and negative connection terminal 7 are arranged on sunken step 5, two sunken concave cavities 8 are arranged on the surface of upper cover 3, hinge 9 is fixed in sunken concave cavity 8, rotatable handle 10 is arranged on hinge 9, and in normal state, handle 10 is laid flat and does not exceed the surface of upper cover 3, and the whole looks flat and beautiful.

[0027] The detachable battery pack support is arranged in the cavity formed after the installation of lower casing 1 and upper cover 3.In the embodiment of the utility model application, please refer to Figure 3 The detachable battery pack support includes main frame 12 for placing battery pack, front baffle 13 and rear baffle 14 are arranged on the two sides of main frame 12, and BMS support 15 is installed on the upper surface of front baffle 13 and rear baffle 14.

[0028] Further, the rear baffle 14 is provided with a bending part 19, and the left and right sides and the upper side of the bending part 19 are provided with second threaded holes 20, and the main frame 12 is fixed on the bending part 19 by bolts. The bending part 19 is used for fixing the main frame 12, the rear baffle 14 and the BMS support 15. It should be noted that the front baffle 13 and the rear baffle 14 are the same in structure.

[0029] Further, the side of the upper cover 3 is provided with a first threaded hole 16, and the upper side ring 2 of the lower shell 1 is provided with a first mounting hole 17. The first threaded hole 16 is threadedly connected with the first mounting hole 17 by a bolt, so that the lower shell 1 and the upper cover 3 are fixedly connected.

[0030] Further, the right side end of the BMS support 15 is provided with a slot hole 18. The slot hole 18 can compensate for assembly displacement and reduce assembly stress of each fixed part. Correspondingly, the right side end of the main frame 12 is also provided with a slot hole 18.

[0031] The utility model discloses the beneficial effect lies in: upper shell, lower shell 1 and detachable battery pack support all adopt cold rolled steel sheet through sheet metal technology and are made, can bear the relatively big gravity of battery pack itself. Detachable battery pack support adopts independent support to surround, and the main frame 12 is fixed with screw, and the assembly of battery pack is convenient, and it is convenient for production and assembly, and also can prevent the short circuit risk caused by the collision of battery and box in the bumpy environment to the greatest extent. The positive and negative terminal 7 can bear 300A's large current, and can guarantee the stable work of circuit. The design of sunken wiring terminal and sunken handle 10 can reduce the redundant space, so that the power box can be placed in narrow environment more easily.

[0032] In the description of the utility model, it should be explained that the terms "vertical", "upper", "lower", "horizontal" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, structure and operation, so it cannot be understood as a limitation on the utility model.

[0033] In the description of the utility model, it should be explained that, unless otherwise specified and limited, the terms "set", "install", "connect", "connect" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific situation.

[0034] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for the equivalent replacement of part of the technical features of the technical solutions recorded in the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, shall be included within the scope of the present application.

Claims

1. A power supply for a stationary air conditioner for a large truck, characterized by: The application relates to a battery pack, which comprises a lower shell (1), the top of the lower shell (1) is provided with an inner-recessed upper edge side ring (2), an inner-recessed surface area forms a stepped outer ring (4) for placing an upper cover (3), the side edge of the upper cover (3) is provided with a sunken step (5), the sunken step (5) is provided with a positive electrode connecting terminal (6) and a negative electrode connecting terminal (7), the surface of the upper cover (3) is provided with a sunken cavity (8), the sunken cavity (8) is fixed with a hinge (9), the hinge (9) is provided with a rotatable handle (10); a detachable battery pack support is arranged in the cavity formed after the lower shell (1) and the upper cover (3) are installed, the detachable battery pack support comprises a main frame (12) for placing a battery pack, the two sides of the main frame (12) are provided with a front baffle (13) and a rear baffle (14), the upper surface of the front baffle (13) and the rear baffle (14) is installed with a BMS support (15).

2. The stationary air conditioner power supply for a large truck as set forth in claim 1, wherein: The side surface of the upper cover (3) is provided with a first threaded hole (16), and the upper edge side ring (2) of the lower shell (1) is provided with a first mounting hole (17).

3. The stationary air conditioner power supply for a heavy duty truck according to claim 1, wherein: One end of the BMS support (15) is provided with a slot hole (18).

4. The stationary air conditioner power supply for a heavy duty truck of claim 1 wherein: The rear baffle (14) is provided with a bending part (19).

5. The stationary air conditioner power supply for a heavy duty truck according to claim 4, characterized by: The bending part (19) is provided with a second threaded hole (20).

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