Inverter liquid-cooled sheet metal battery box and water-cooled adjusting method

Abstract

The present application relates to an inverter liquid-cooled sheet metal battery box and a water-cooled adjusting method, comprising a box base and a box upper cover, a box support frame is arranged in the space enclosed by the box base and the box upper cover, the box support frame is fixedly connected with the box base, a reinforcing rib support and a water-cooled plate are arranged at the upper part of the box support frame, a water-cooled flow channel is arranged in the water-cooled plate, and a liquid inlet and a liquid outlet in communication with the water-cooled flow channel are arranged at the side of the water-cooled plate; the inverter box of the present application is used, the reinforcing rib support is used to strengthen the strength of the box upper cover, the reinforcing rib support is also used to install the water-cooled plate, and the reinforcing rib support plays a heat conduction role to cool the inverter box, the overall structure layout is reasonable and compact, the space utilization rate is high, the box strength can be guaranteed while the size of the box is minimized, the cooling effect is good, and there is almost no noise.

Description

Technical Field

[0001] This invention relates to the field of water-cooling technology for inverter battery boxes, and more specifically, to a liquid-cooled sheet metal battery box for an inverter and a water-cooling adjustment method. Background Technology

[0002] Currently, the common method for heat dissipation of inverter battery boxes is fan cooling. This method requires sufficient space to act as an air duct, and the box is difficult to seal. It also generates significant noise. Conventional liquid cooling components only provide localized liquid cooling and are not suitable for inverter battery boxes. A compact structural layout for water cooling of inverter battery boxes is needed. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide an inverter liquid-cooled sheet metal battery box and a water-cooling adjustment method, in view of the above-mentioned defects of the prior art.

[0004] The technical solution adopted by this invention to solve its technical problem is:

[0005] A liquid-cooled sheet metal battery enclosure for an inverter is constructed, comprising a base and a top cover. A support frame is disposed within the space enclosed by the base and the top cover, and the support frame is fixedly connected to the base. A metal reinforcing rib bracket, conforming to the inner top surface of the top cover, and a water-cooling plate fixed to the lower surface of the reinforcing rib bracket are disposed on the upper part of the support frame. The size of the water-cooling plate is approximately the same as that of the reinforcing rib bracket, and a water-cooling channel is disposed within the water-cooling plate. An inlet and an outlet, communicating with the water-cooling channel, are disposed on the side of the water-cooling plate. The inlet is connected to an inlet connector, and the outlet is connected to an outlet connector. A connecting seat for connecting the inlet and outlet connectors is disposed on the top cover.

[0006] The inverter liquid-cooled sheet metal battery housing of the present invention includes a housing support frame comprising a plurality of support columns fixedly connected to the edge of the housing base, the upper ends of adjacent support columns being connected by connecting strips; the reinforcing rib bracket is fixedly connected to the plurality of connecting strips.

[0007] The inverter liquid-cooled sheet metal battery box of the present invention includes a water-cooling plate comprising an upper cover fixedly connected to the reinforcing rib bracket and a lower cover connected to the upper cover; the edges of the upper cover and the edges of the lower cover are correspondingly sealed together.

[0008] The inverter liquid-cooled sheet metal battery housing of the present invention has a plurality of protrusions on the lower surface of the upper cover that fit the lower cover, and the gaps between the plurality of protrusions form the water-cooling flow channel.

[0009] The inverter liquid-cooled sheet metal battery housing of the present invention includes an upper cover with concave grooves corresponding to the protrusions on its upper surface. An elastic cooling water bladder is fitted inside the concave groove. The cooling water bladder has an inlet pipe and an outlet pipe. The end of the inlet pipe away from the cooling water bladder and the end of the outlet pipe away from the cooling water bladder are connected by a cooling fin. Cooling channels are provided within the cooling fin. The upper cover is equipped with a drive mechanism that circulates the internal coolant along the inlet pipe, cooling channels, and outlet pipe.

[0010] The inverter liquid-cooled sheet metal battery housing of the present invention includes a drive mechanism comprising a rotating shaft passing through the upper surface of the upper cover, a sealed bearing cooperating with the rotating shaft on the upper cover, and a turbine assembly located in the cold water flow channel connected to the lower end of the rotating shaft to drive its rotation; a reduction gearbox is provided on the upper cover, the input end of the reduction gearbox is connected to the rotating shaft, and the output end is provided with a cam that presses the cooling water bladder, the cam being located on the upper surface of the cooling water bladder and pressing the cooling water bladder into a corresponding concave groove; a one-way inlet valve is provided in the inlet pipe, and a one-way outlet valve is provided in the outlet pipe; multiple C-shaped buckles with positions limiting the inlet and outlet pipes are provided on the rear side of the housing base, and the reinforcing rib bracket has reserved installation space for installing the drive mechanism.

[0011] The inverter liquid-cooled sheet metal battery housing of the present invention includes a turbine assembly comprising a transverse rod disposed in a cold water flow channel, a rotating shaft rotatably connected to the transverse rod, a turbine fixedly disposed at one end of the rotating shaft, a first bevel gear fixedly disposed at the other end, and a second bevel gear meshing with the first bevel gear fixedly disposed at the lower end of the rotating shaft.

[0012] A water-cooling regulation method for an inverter liquid-cooled sheet metal battery box, using the aforementioned inverter liquid-cooled sheet metal battery box, is implemented as follows:

[0013] During cooling, the coolant flows through the inlet, water cooling channel and outlet, which lowers the temperature of the water cooling plate. While the cold water bag is being cooled, the temperature of the top cover of the box is reduced by the heat conduction effect of the reinforcing rib support.

[0014] When coolant flows through the water-cooled channel, the coolant flow drives the turbine assembly to rotate, which in turn drives the rotating shaft to rotate. After the speed is reduced and the torque is increased by the reduction gearbox, the cam rotates. The cam squeezes the cooling water bladder. Under the restriction of the flow direction by the one-way inlet valve and the one-way outlet valve, the coolant inside the cooling water bladder circulates along the inlet pipe, cooling water channel and outlet pipe, and is locally cooled at a set position by the cooling fins.

[0015] The beneficial effects of the present invention are as follows: the inverter enclosure of this application uses a reinforcing rib bracket to strengthen the strength of the enclosure top cover, while the reinforcing rib bracket is also used to install the water cooling plate and play a role in heat conduction to cool down the inverter enclosure. The overall structure layout is reasonable and compact, with high space utilization. It can ensure the strength of the enclosure while making the size of the enclosure extremely small, with good cooling effect and almost no noise. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort:

[0017] Figure 1 This is an exploded view of the inverter liquid-cooled sheet metal battery box according to a preferred embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the inverter liquid-cooled sheet metal battery box reinforcing rib bracket according to a preferred embodiment of the present invention;

[0019] Figure 3 This is an exploded view of the water-cooled plate of the inverter liquid-cooled sheet metal battery box according to a preferred embodiment of the present invention (turbine assembly not shown);

[0020] Figure 4 This is a partial sectional view of the cooling plate of the inverter liquid-cooled sheet metal battery box according to a preferred embodiment of the present invention;

[0021] Figure 5 This is a schematic diagram of the cooling water bladder structure of the inverter liquid-cooled sheet metal battery box according to a preferred embodiment of the present invention;

[0022] Figure 6 This is a partial top view of the inverter liquid-cooled sheet metal battery box turbine assembly according to a preferred embodiment of the present invention. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, a clear and complete description will be provided below in conjunction with the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the protection scope of the present invention.

[0024] The preferred embodiment of the inverter liquid-cooled sheet metal battery housing of the present invention, such as Figure 1 As shown, see also Figures 2-6The enclosure includes a base 1 and a top cover 2. A support frame 3 is provided inside the space enclosed by the base 1 and the top cover 2. The support frame 3 is fixedly connected to the base 1. A metal reinforcing rib bracket 4 that fits the inner top surface of the top cover and a water-cooling plate 5 fixed to the lower surface of the reinforcing rib bracket 4 are provided on the upper part of the support frame 3. The size of the water-cooling plate 5 is similar to that of the reinforcing rib bracket 4. A water-cooling channel 50 is provided inside the water-cooling plate 5. An inlet 51 and an outlet 52 that communicate with the water-cooling channel are provided on the side of the water-cooling plate. An inlet connector 53 is connected to the inlet and an outlet connector 54 are connected to the outlet. A connecting seat 20 for connecting the inlet and outlet connectors is provided on the top cover 2.

[0025] The inverter enclosure of this application uses a reinforcing rib bracket 4 to strengthen the strength of the enclosure top cover 2. The reinforcing rib bracket 4 is also used to install the water cooling plate 5 and plays a role in heat conduction to cool down the inverter enclosure. The overall structure is reasonable and compact, with high space utilization. It can ensure the strength of the enclosure while making the size of the enclosure extremely small, with good cooling effect and almost no noise.

[0026] Preferably, the housing support frame 3 includes multiple support columns 30 fixedly connected to the edge of the housing base, and the upper ends of adjacent support columns 30 are connected by connecting strips 31; the reinforcing rib bracket 4 is fixedly connected to multiple connecting strips 31; the water-cooling plate 5 includes an upper cover 500 fixedly connected to the reinforcing rib bracket 4 and a lower cover 501 connected to the upper cover; the edges of the upper cover 500 and the lower cover 501 are correspondingly sealed together, and the lower surface of the upper cover 500 is provided with multiple protrusions 502 that fit the lower cover, and the gap between the multiple protrusions 502 forms a water-cooling flow channel 50; the structure is simple, the support effect is good, and the cost is low.

[0027] Preferably, the upper surface of the cover 500 is provided with concave grooves 55 (grooves formed during the extrusion molding of the protrusions) corresponding one-to-one with the protrusions 502. An elastic cooling water bladder 6 is fitted inside the concave groove 55. The cooling water bladder 6 is provided with an inlet pipe 60 and an outlet pipe 61. The end of the inlet pipe away from the cooling water bladder and the end of the outlet pipe away from the cooling water bladder 6 are connected by a cooling fin 62. A cooling water channel (connecting the inlet pipe and the outlet pipe) is provided inside the cooling fin 62. The cover 500 is provided with a drive mechanism that drives the internal coolant to circulate along the inlet pipe, cooling water channel, and outlet pipe. The drive mechanism includes a rotating shaft 70 passing through the upper surface of the cover 500. The cover 500 is provided with... A sealed bearing 56 is provided to cooperate with the rotating shaft 70. The lower end of the rotating shaft 70 is connected to a turbine assembly located in the cold water flow channel to drive its rotation. A reduction gearbox 57 is provided on the upper cover 500. The input end of the reduction gearbox 57 is connected to the rotating shaft 70, and the output end is provided with a cam 71 that presses the cooling water bladder 6. The cam 71 is located on the upper surface of the cooling water bladder 6 and presses the cooling water bladder 6 into the corresponding concave groove 55. A one-way inlet valve 600 is provided in the inlet pipe 60, and a one-way outlet valve 610 is provided in the outlet pipe. Multiple C-shaped buckles with position limits for the inlet and outlet pipes are provided on the rear side of the housing base 1. The reinforcing rib bracket 4 has reserved installation space for installing the drive mechanism.

[0028] When coolant flows through the water-cooling channel, the coolant flow drives the turbine assembly to rotate, which in turn drives the rotating shaft to rotate. After the speed is reduced and the torque is increased by the reduction gearbox, the cam rotates. The cam squeezes the cooling water bladder. Under the limitation of the flow direction by the one-way inlet valve and the one-way outlet valve, the coolant inside the cooling water bladder circulates along the inlet pipe, cooling water channel and outlet pipe, and relies on the cooling fins to perform local cooling at a set location. In this way, the space of the concave groove and the space of the reinforcing rib support are effectively utilized, and the cooling capacity and the power of the water flow in the water-cooling channel are used to supplement the cooling effect of the water-cooling plate, increase the function of local water cooling (such as the key heat-generating parts of the battery), and further utilize the internal space of the casing, so as to make the water cooling effect more comprehensive without the need for additional power.

[0029] Preferably, the turbine assembly includes a transverse rod 80 disposed within the cold water flow channel, a rotating shaft 81 rotatably connected to the transverse rod 80, a turbine 82 fixedly disposed at one end of the rotating shaft 81, a first bevel gear 83 fixedly disposed at the other end, and a second bevel gear 84 meshing with the first bevel gear 83 fixedly disposed at the lower end of the rotating shaft 70; the flow of coolant will drive the turbine to rotate, thereby driving the rotating shaft to rotate, and the rotating shaft 70 will rotate by the transmission of the first bevel gear and the second bevel gear; of course, it is understood that the turbine assembly can also be replaced with other existing forms.

[0030] A water-cooling regulation method for an inverter liquid-cooled sheet metal battery box, using the aforementioned inverter liquid-cooled sheet metal battery box, is implemented as follows:

[0031] During cooling, the coolant flows through the inlet, water cooling channel and outlet, which lowers the temperature of the water cooling plate. While the cold water bag is being cooled, the temperature of the top cover of the box is reduced by the heat conduction effect of the reinforcing rib support.

[0032] When coolant flows through the water-cooled channel, the coolant flow drives the turbine assembly to rotate, which in turn drives the rotating shaft to rotate. After the speed is reduced and the torque is increased by the reduction gearbox, the cam rotates. The cam squeezes the cooling water bladder. Under the restriction of the flow direction by the one-way inlet valve and the one-way outlet valve, the coolant inside the cooling water bladder circulates along the inlet pipe, cooling water channel and outlet pipe, and is locally cooled at a set position by the cooling fins.

[0033] By applying the method described in this application, the internal space of the enclosure can be fully utilized, and both overall water cooling and local water cooling effects can be achieved without the need for additional power.

[0034] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A liquid-cooled sheet metal battery housing for an inverter, characterized in that, The enclosure includes a base and a top cover. A support frame is installed within the space enclosed by the base and top cover. The support frame is fixedly connected to the base. A metal reinforcing rib bracket, conforming to the inner top surface of the top cover, and a water-cooling plate fixed to the lower surface of the reinforcing rib bracket are provided on the upper part of the support frame. The size of the water-cooling plate is approximately the same as the reinforcing rib bracket, and a water-cooling channel is provided within the water-cooling plate. An inlet and an outlet, communicating with the water-cooling channel, are provided on the side of the water-cooling plate. The inlet is connected to an inlet connector, and the outlet is connected to an outlet connector. A connecting seat is provided on the top cover to connect the inlet and outlet connectors. The support frame includes multiple support columns fixedly connected to the edge of the base. The upper ends of adjacent support columns... The reinforcing rib bracket is fixedly connected to multiple connecting strips via connecting strips; the water-cooling plate includes an upper cover fixedly connected to the reinforcing rib bracket and a lower cover connected to the upper cover; the edges of the upper cover and the lower cover are correspondingly and sealed together; the lower surface of the upper cover is provided with multiple protrusions that fit against the lower cover, and the gaps between the multiple protrusions form the water-cooling flow channel; a concave groove is provided on the side of the protrusion away from the lower cover, and an elastic cooling water bladder is fitted inside the concave groove; the cooling water bladder is provided with an inlet pipe and an outlet pipe, and the end of the inlet pipe away from the cooling water bladder and the end of the outlet pipe away from the cooling water bladder are connected by a cooling plate, and a cooling water channel is provided inside the cooling plate; the upper cover is provided with a drive mechanism that drives the internal coolant to circulate along the inlet pipe, the cooling water channel and the outlet pipe.

2. The inverter liquid-cooled sheet metal battery housing according to claim 1, characterized in that, The drive mechanism includes a rotating shaft passing through the upper surface of the top cover, a sealed bearing cooperating with the rotating shaft on the top cover, and a turbine assembly located in the water-cooling channel connected to the lower end of the rotating shaft to drive its rotation; a reduction gearbox is provided on the top cover, the input end of the reduction gearbox is connected to the rotating shaft, and the output end is provided with a cam that presses the cooling water bladder, the cam is located on the upper surface of the cooling water bladder and presses the cooling water bladder into a corresponding concave groove; a one-way inlet valve is provided in the inlet pipe, and a one-way outlet valve is provided in the outlet pipe; multiple C-shaped buckles with position limits for the inlet and outlet pipes are provided on the rear side of the housing base, and the reinforcing rib bracket has reserved installation space for installing the drive mechanism.

3. The inverter liquid-cooled sheet metal battery housing according to claim 2, characterized in that, The turbine assembly includes a transverse rod disposed in a cold water flow channel, a rotating shaft rotatably connected to the transverse rod, a turbine fixedly disposed at one end of the rotating shaft, a first bevel gear fixedly disposed at the other end, and a second bevel gear meshing with the first bevel gear fixedly disposed at the lower end of the rotating shaft.

4. A method for water-cooling adjustment of an inverter liquid-cooled sheet metal battery box, using the inverter liquid-cooled sheet metal battery box as described in claim 2 or 3, characterized in that, The implementation method is as follows: During cooling, the coolant flows through the inlet, water cooling channel and outlet, which reduces the temperature of the water cooling plate. While the cooling water bag is being cooled, the temperature of the top cover of the box is reduced by the heat conduction effect of the reinforcing rib support. When coolant flows through the water-cooled channel, the coolant flow drives the turbine assembly to rotate, which in turn drives the rotating shaft to rotate. After the speed is reduced and the torque is increased by the reduction gearbox, the cam rotates. The cam squeezes the cooling water bladder. Under the restriction of the flow direction by the one-way inlet valve and the one-way outlet valve, the coolant inside the cooling water bladder circulates along the inlet pipe, cooling water channel and outlet pipe, and is locally cooled at a set position by the cooling fins.

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