High-power nickel-hydrogen battery pack for hybrid electric vehicle

Abstract

The invention provides a high-power nickel-metal hydride battery pack for a hybrid electric vehicle, relates to the technical field of batteries, and aims to solve the problem that dust in air covers the surface of a battery through heat dissipation holes in the side surface of the battery pack when the existing nickel-metal hydride battery pack is in use, the high-power nickel-metal hydride battery pack comprises a main body, and heat dissipation grooves are formed in the top and the bottom of the main body; connecting pieces are mounted on the side surfaces of the fixing plates on the side surfaces of the main body, and brackets are mounted in the fixing plates on the side surfaces of the main body; an inner cavity in the support is formed in the fixing plate, and the two ends of a transverse rod are installed in the inner cavity in the support. The supporting piece is installed on the side face of the inner cavity, and a vertical plate in the supporting piece is installed in the inner cavity through a spring. The ventilation piece is installed in the transverse plate, and an inner groove in the ventilation piece is formed in the transverse plate. The heat-sensitive metal in the inner groove expands when heated to push the inner plate to move, so that the inner plate is communicated with the opening in the side surface of the transverse plate for heat dissipation, and the battery cooling inner plate restores to the original position to block the opening in the transverse plate.

Description

Technical Field

[0001] The present invention belongs to the technical field of batteries, and more particularly relates to a high-power nickel-hydrogen battery pack for hybrid electric vehicles. Background Art

[0002] Hybrid vehicles are divided into: series hybrid vehicles, parallel hybrid vehicles, and hybrid electric vehicles. The nickel-metal hydride batteries in the hybrid vehicles are charged by generators or direct plug-in. Nickel-metal hydride batteries are a type of battery with good performance. The positive active material of the nickel-metal hydride battery is Ni2, and the negative active material is metal hydride.

[0003] For example, application number: CN201610553244.1 involves a square nickel-metal hydride battery pack, comprising a square shell, an electrode busbar, a conductive plate and two or more single cells, wherein the two or more single cells are sequentially placed in the square shell, and adjacent single cells are separated by a conductive plate, and a connecting hole is provided on the conductive plate so that each single cell is connected to a common electrolyte; the single cell comprises a plurality of positive plates, a plurality of negative plates and a continuous folded diaphragm, wherein the positive plates and the negative plates are respectively placed on both sides of the continuous folded diaphragm and are completely separated; the positive plates and the negative plates are separated by the folds of the continuous folded diaphragm; the positive plates and the negative plates partially extend out of the continuous folded diaphragm and are in close contact with the conductive plate, thereby realizing the series connection between the single cells; the electrode busbar is installed at both ends of the square shell. The present invention greatly reduces the internal resistance of the battery pack by changing the composition structure of the existing battery pack.

[0004] Based on existing technology, it is found that when the existing nickel-metal hydride battery pack is in use, multiple batteries are folded from horizontally laid out to vertically placed, and the batteries need to be separated by partitions. The partitions are prone to falling off when the car vibrates, and there are heat dissipation holes on the side of the battery pack. When heat dissipation is not being performed, dust in the air is likely to cover the surface of the battery, affecting the subsequent heat dissipation effect of the battery. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention provides a high-power nickel-metal hydride battery pack for hybrid vehicles, so as to solve the problem that when the existing nickel-metal hydride battery pack is in use, multiple batteries need to be folded from a horizontally flat arrangement to a vertical arrangement, and the batteries need to be separated by partitions. The partitions are easily detached when the car vibrates. In addition, the battery pack is provided with heat dissipation holes on the side. When heat dissipation is not being performed, dust in the air is easily covered on the surface of the battery, thereby affecting the subsequent heat dissipation effect of the battery.

[0006] The purpose and efficacy of the high-power nickel-metal hydride battery pack for hybrid electric vehicles of the present invention are achieved by the following specific technical means:

[0007] A high-power nickel-metal hydride battery pack for hybrid electric vehicles includes: a main body, wherein the top and bottom of the main body are provided with heat dissipation grooves, and the side of the fixing plate on the side of the main body is installed with a connector, and the interior of the fixing plate on the side of the main body is installed with a bracket; a bracket, wherein the inner cavity of the bracket is arranged inside the interior of the fixing plate, and the two ends of the cross bar are installed inside the inner cavity of the bracket; a support member, wherein the support member is installed on the side of the inner cavity, and the vertical plate in the support member is installed inside the inner cavity via a spring; a ventilation member, wherein the ventilation member is installed inside the cross plate, and the inner groove in the ventilation member is arranged inside the cross plate.

[0008] Furthermore, the support member includes: a rotating plate, a gear is installed on the side end of the rotating plate, and the rotating plate is installed inside the inner cavity, and the gear on the side end of the rotating plate is engaged with the gear on the side end of the cross bar; a push plate, the push plate is an arc-shaped structure, and the push plate is installed on the outside of the rotating plate through a spring, and the positioning rod on the inside of the push plate is inserted into the inside of the rotating plate.

[0009] Furthermore, the connecting member includes: a cross bar, gears are installed at both ends of the cross bar, and a slot is provided on the outside of the cross bar; a carrier plate, the side ends of the carrier plate are arc-shaped structures, and the carrier plate is installed in the slot on the outside of the cross bar.

[0010] Furthermore, the ventilation component includes: an inner groove, a heat-sensitive metal sheet is installed inside the inner groove, and the inner side of the heat-sensitive metal sheet inside the inner groove is connected to the side of the inner groove through a spring; an inner plate, the side of the inner plate is provided with an inclined opening, and the inner plate is installed inside the inner groove through a spring, and the side end of the inner plate is in contact with the heat-sensitive metal sheet on the side of the inner groove.

[0011] Furthermore, the bracket includes: an inner cavity, with slots provided at the top and bottom of the inner cavity; a guide groove, which is provided on both sides of the inner cavity, and an upper plate and a lower plate are installed inside the guide groove.

[0012] Furthermore, the bracket also includes: an upper plate, the side of the upper plate is provided with a serrated structure, and the serrated structure on the side of the upper plate is engaged with the gears at both ends of the cross bar; a lower plate, the side of the lower plate is provided with a serrated structure, and the serrated structure on the side of the lower plate is engaged with the gears at both ends of the cross bar, and the top of the lower plate is in contact with the upper plate.

[0013] Furthermore, the main body includes: side grooves, in which electrode contacts are installed, and the side grooves are arranged on both sides of the main body; fixed plates, which are fitted on both sides of the main body, and the inner sides of the fixed plates are in contact with the contacts inside the side grooves.

[0014] Furthermore, the support member also includes: a vertical plate, the top and bottom of the vertical plate are provided with protrusions, and a push plate is slidably installed on the side of the vertical plate; a support plate, the support plate is a rectangular structure, and the support plate is installed on the side of the vertical plate through a rotating shaft.

[0015] Furthermore, the support member also includes: a horizontal plate, the side of the horizontal plate is provided with an inclined opening, and the horizontal plate is installed with a support plate through a rotating shaft; a slide groove, the slide groove is provided on the two end sides of the horizontal plate, and a slider is slidably installed inside the slide groove, and the slider installed inside the slide groove is installed on the side of the inner cavity.

[0016] Furthermore, the connecting part also includes: a card slot, a positioning rod is provided on the inner side of the card slot, and the card slot is arranged inside the carrier plate; a card plate, the card plate is slidably installed inside the card slot through a spring, and a mounting plate with a threaded hole is installed on the outer end of the card plate, an opening is provided on the inner side of the card plate, and the positioning rod inside the card slot is installed in the opening inside the card plate.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. In this device, an inner cavity is provided, and the upper and lower plates installed inside the inner cavity are moved to support the vertically placed batteries. When the battery pack is laid out horizontally, the upper and lower plates are stored inside the inner cavity, ensuring the flatness of each battery, facilitating placement in the battery box of the car, and preventing protruding parts from causing damage to the battery. When the battery is placed vertically, the upper and lower plates are driven by the gears at both ends of the crossbar to move outward respectively, supporting the two batteries without contacting the battery cells, preventing the two batteries from heating up and posing a safety hazard. The inner ends of the upper and lower plates are installed inside the inner cavity to prevent the upper and lower plates from falling off, so that the upper and lower plates can adjust to a suitable working state according to the different placement positions of the batteries.

[0019] 2. In this device, an inner groove is set. When dissipating heat, the heat-sensitive metal inside the inner groove expands when heated, pushing the inner plate to move, so that the openings on the side of the inner plate are connected with the openings on the side of the horizontal plate, ensuring the heat dissipation inside the battery. While the hot air is discharged outward, dust is prevented from entering the side of the battery. After the battery cools down, the inner plate returns to its original position to block the openings on the horizontal plate to prevent dust in the air from entering. Timely adjustments are made according to the heating conditions of the battery to reduce the adhesion of dust to the battery surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0021] Figure 2 It is a schematic diagram of the folded state structure of the present invention.

[0022] Figure 3 It is a schematic diagram of the cross-sectional structure of the fixing plate of the present invention.

[0023] Figure 4 It is a schematic diagram of the three-dimensional structure of the crossbar of the present invention.

[0024] Figure 5It is a schematic diagram of the cross-sectional structure of the card board of the present invention.

[0025] Figure 6 It is a schematic diagram of the inner cavity cross-sectional structure of the present invention.

[0026] Figure 7 It is a schematic diagram of the three-dimensional structure of the rotating plate of the present invention.

[0027] Figure 8 It is a schematic diagram of the inner groove cross-sectional structure of the present invention.

[0028] In the figure, the corresponding relationship between the component names and the drawing numbers is as follows:

[0029] 1. Main body; 101. Side groove; 102. Fixed plate; 2. Connector; 201. Crossbar; 202. Carrying plate; 203. Card slot; 204. Card plate; 3. Bracket; 301. Inner cavity; 302. Guide groove; 303. Upper plate; 304. Lower plate; 4. Support member; 401. Rotating plate; 402. Push plate; 403. Vertical plate; 404. Support plate; 405. Cross plate; 406. Slide groove; 5. Ventilation member; 501. Inner groove; 502. Inner plate. DETAILED DESCRIPTION

[0030] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0031] As attached Figure 1 To the attached Figure 8 As shown:

[0032] The present invention provides a high-power nickel-metal hydride battery pack for a hybrid electric vehicle, comprising: a main body 1, wherein the top and bottom of the main body 1 are provided with heat dissipation grooves, and a connector 2 is installed on the side of a fixing plate 102 on the side of the main body 1, and a bracket 3 is installed inside the fixing plate 102 on the side of the main body 1; the bracket 3, wherein an inner cavity 301 in the bracket 3 is provided inside the fixing plate 102, and two ends of a cross bar 201 are installed inside the inner cavity 301 in the bracket 3; a support member 4, wherein the support member 4 is installed on the side of the inner cavity 301, and a vertical plate 403 in the support member 4 is installed inside the inner cavity 301 via a spring; and a ventilation member 5, wherein the ventilation member 5 is installed inside the cross plate 405, and an inner groove 501 in the ventilation member 5 is provided inside the cross plate 405.

[0033] Among them, the main body 1 includes: side grooves 101, the inside of which is installed with electrode contacts, and the side grooves 101 are arranged on both sides of the main body 1; fixed plates 102, the fixed plates 102 are fitted on both sides of the main body 1, and the inner sides of the fixed plates 102 are in contact with the contacts inside the side grooves 101. The interior of the main body 1 is provided with high-power nickel-hydrogen battery cells, which can increase the battery storage capacity and facilitate use in hybrid vehicles. When charging, the grooves 101 on both sides of the main body 1 can provide space for heat dissipation on the contacts. The fixed plates 102 are installed at both ends of the main body 1 and are used as the anode and cathode of the battery respectively, which is convenient for fixing the position of the main body 1 and convenient for series connection with other main bodies 1.

[0034] Among them, the connecting member 2 includes: a cross bar 201, gears are installed at both ends of the cross bar 201, and a slot is provided on the outside of the cross bar 201; a carrier plate 202, the side end of the carrier plate 202 is an arc-shaped structure, and the carrier plate 202 is installed in the slot on the outside of the cross bar 201; a clamping groove 203, a positioning rod is provided on the inner side of the clamping groove 203, and the clamping groove 203 is provided inside the carrier plate 202; a clamping plate 204, the clamping plate 204 is installed inside the clamping groove 203 by a spring sliding, and a mounting plate with a threaded hole is installed on the outer end of the clamping plate 204, and an opening is provided on the inner side of the clamping plate 204, and a The positioning rod on the inside of the slot 203 is equipped with a connector 2 on the outside of the fixed plate 102. The two ends of the cross bar 201 are rotatably installed inside the inner cavity 301. The rotation of the cross bar 201 drives the carrier plate 202 to rotate, so that the position of the carrier plate 202 is adjusted according to the swing of the other battery, so that the carrier plate 202 can be placed vertically or horizontally. The card plate 204 moves inside the slot 203 through the spring, so that the card plate 204 can be adjusted according to the gap between different batteries. The positioning rod on the inside of the slot 203 ensures the vertical movement of the card plate 204. The outer end of the card plate 204 connects the two batteries in series through a threaded rod.

[0035] Among them, the bracket 3 includes: an inner cavity 301, the top and bottom of the inner cavity 301 are provided with slots; a guide groove 302, the guide groove 302 is provided on both sides of the inner cavity 301, and an upper plate 303 and a lower plate 304 are installed inside the guide groove 302; the upper plate 303, the side of the upper plate 303 is provided with a serrated structure, and the serrated structure on the side of the upper plate 303 is engaged with the gears at both ends of the cross bar 201; the lower plate 304, the side of the lower plate 304 is provided with a serrated structure, and the serrated structure on the side of the lower plate 304 is engaged with the gears at both ends of the cross bar 201, and the top of the lower plate 304 is in contact with the upper plate 303, When the batteries are placed horizontally, the upper plate 303 and the lower plate 304 are stored inside the inner cavity 301, keeping the surface of the batteries flat and convenient for placement on the car. When they need to be placed vertically, the cross bar 201 rotates through the gears at both ends to engage with the serrated structures on the sides of the upper plate 303 and the lower plate 304, driving the upper plate 303 and the lower plate 304 to move out of the inner cavity 301 along the guide groove 302 respectively, so that the upper plate 303 and the lower plate 304 support multiple batteries, and maintain a stable connection between the upper plate 303 and the lower plate 304 under the pull of the connector 2, separating the distance between multiple batteries to facilitate heat dissipation between the batteries.

[0036] Among them, the support member 4 includes: a rotating plate 401, a gear is installed on the side end of the rotating plate 401, and the rotating plate 401 is installed inside the inner cavity 301, and the gear at the side end of the rotating plate 401 is meshed with the gear at the side end of the cross bar 201; a push plate 402, the push plate 402 is an arc-shaped structure, and the push plate 402 is installed on the outside of the rotating plate 401 through a spring, and the positioning rod on the inside of the push plate 402 is inserted into the inside of the rotating plate 401; a vertical plate 403, a protrusion is provided at the top and bottom of the vertical plate 403, and the push plate 402 is slidably installed on the side of the vertical plate 403; a support plate 404, the support plate 404 is a rectangular structure, and the support plate 404 is installed on the side of the vertical plate 403 through a rotating shaft; a horizontal plate 405, an inclined opening is provided on the side of the horizontal plate 405, and the horizontal plate 405 is installed with the support plate 404 through a rotating shaft; a slide groove 40 6. Slide grooves 406 are provided on the side surfaces of both ends of the horizontal plate 405, and sliders are installed for sliding inside the slide grooves 406, and the sliders installed inside the slide grooves 406 are installed on the side surfaces of the inner cavity 301. When the cross bar 201 rotates, the gears at both ends drive the gears at the side ends of the rotating plate 401 to rotate, so that the rotating plate 401 drives the two push plates 402 to rotate, so that the push plates 402 push the vertical plates 403 to move under the action of the springs. At the same time, the positioning rods on the inside of the push plates 402 maintain the horizontal movement of the push plates 402, and the vertical plates 403 move outward and push the two cross plates 405 up and down respectively through the two support plates 404, so that the cross plate 405 blocks the gap between the two batteries to prevent dust from adhering to the surface of the battery and affecting the heat dissipation effect. The sliders installed inside the slide grooves 406 are installed on the side surfaces of the inner cavity 301 to ensure the vertical movement of the cross plate 405.

[0037] The ventilation member 5 includes: an inner groove 501, a heat-sensitive metal sheet is installed inside the inner groove 501, and the inner side of the heat-sensitive metal sheet inside the inner groove 501 is connected to the side of the inner groove 501 through a spring; an inner plate 502, an inclined opening is provided on the side of the inner plate 502, and the inner plate 502 is installed inside the inner groove 501 through a spring, and the side end of the inner plate 502 is in contact with the heat-sensitive metal sheet on the side of the inner groove 501. When the battery is charged, the surface temperature of the battery rises, and the heat-sensitive metal sheet inside the inner groove 501 expands when it is heated. The heat-sensitive metal sheet expands and is pushed outward by the spring to push the inner plate 502 to move, so that the openings on the side of the inner plate 502 are connected with the openings on the side of the transverse plate 405, which is convenient for dissipating the heat generated between the two batteries. The openings on the side of the inner plate 502 and the transverse plate 405 are inclined to prevent dust from entering. At the same time, hot air is discharged outward to prevent dust from entering. After cooling, the metal sheet inside the inner groove 501 contracts, and the inner plate 502 blocks the openings on the side of the transverse plate 405 under the action of the spring, reducing the entry of dust in the air.

[0038] In another embodiment, an exhaust fan is installed on the side of the horizontal plate 405 to replace the inner plate 502 to dissipate heat generated by the battery, so that the exhaust fan actively dissipates heat through the drive of the motor, dissipates heat in a timely manner during charging, has high accuracy, and has a good heat dissipation effect.

[0039] When in use: When installing a high-power nickel-metal hydride battery on a hybrid vehicle, first adjust the placement of the battery pack according to the placement space on the vehicle. A high-power nickel-metal hydride battery cell is installed inside the main body 1 to improve the vehicle's cruising range. The fixing plate 102 is installed at both ends of the main body 1 and used as the anode and cathode of the battery. The rotating crossbar 201 drives the carrier plate 202 to rotate, so that the carrier plate 202 is placed vertically or horizontally, and the card plate 204 is adjusted according to the battery gap through the threaded rod and connected in series with the card plate 204 at another location. When multiple batteries are placed horizontally, the upper plate 303 and the lower plate 304 are stored in the inner cavity 301 to keep the battery surface flat. When placed vertically, the gears at both ends of the crossbar 201 rotate to drive the serrated structure on the side of the upper plate 303 and the lower plate 304 to move, so that the upper plate 3 03 and the lower plate 304 move out of the inner cavity 301 along the guide groove 302 respectively to support the gaps between multiple batteries. When the cross bar 201 rotates, the gears at both ends drive the gears at the side end of the rotating plate 401 to rotate, so that the push plate 402 pushes the vertical plate 403 to move horizontally under the action of the spring, and the vertical plate 403 moves outward through the support plate 404 to push the two horizontal plates 405 to move up and down to block the gap between the two batteries, preventing dust from affecting the heat dissipation of the battery surface. When the battery temperature rises, the heat-sensitive metal sheet inside the inner tank 501 expands when heated, and the inner plate 502 is pushed to move under the push of the spring, so that the openings on the side of the inner plate 502 are connected with the openings on the side of the horizontal plate 405 for heat dissipation. After cooling, the heat-sensitive metal sheet inside the inner tank 501 shrinks, and the inner plate 502 blocks the openings on the side of the horizontal plate 405.

[0040] The embodiments of the present invention are presented for purposes of illustration and description and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are chosen and described in order to better illustrate the principles of the invention and its practical application and to enable those skilled in the art to understand the invention and design various embodiments with various modifications as suited for specific applications.

Claims

1. A high-power nickel-metal hydride battery pack for hybrid electric vehicles, characterized by: High-power NiMH battery packs for hybrid vehicles include: A main body, wherein the top and bottom of the main body are provided with heat dissipation grooves, the side of the fixing plate on the side of the main body is installed with a connector, and the inside of the fixing plate on the side of the main body is installed with a bracket; A bracket, wherein an inner cavity of the bracket is provided inside the fixing plate, and two ends of the crossbar are mounted inside the inner cavity of the bracket; A support member, wherein the support member is mounted on a side of the inner cavity, and a vertical plate in the support member is mounted inside the inner cavity via a spring; The ventilation member is installed inside the transverse plate, and the inner groove in the ventilation member is arranged inside the transverse plate.

2. The high-power nickel-metal hydride battery pack for hybrid electric vehicles according to claim 1, characterized in that: The subject includes: Side grooves, where electrode contacts are installed, and the side grooves are provided on both sides of the main body; The fixing plate is fitted on both sides of the main body, and the inner side of the fixing plate contacts the inner contact piece of the side groove.

3. The high-power nickel-metal hydride battery pack for hybrid electric vehicles according to claim 1, characterized in that: The connecting piece includes: A crossbar, with gears mounted on both ends of the crossbar and slots on the outside of the crossbar; The carrier plate has a side end with an arc-shaped structure, and the carrier plate is installed in the slot on the outside of the cross bar.

4. The high-power nickel-metal hydride battery pack for hybrid electric vehicles according to claim 1, wherein: The connecting piece further comprises: A card slot, a positioning rod is provided on the inner side of the card slot, and the card slot is arranged inside the carrier plate; The card plate is slidably installed inside the card slot through a spring, and a mounting plate with a threaded hole is installed on the outer end of the card plate. An opening is provided on the inner side of the card plate, and a positioning rod inside the card slot is installed in the opening inside the card plate.

5. The high-power nickel-metal hydride battery pack for hybrid electric vehicles according to claim 1, wherein: The bracket comprises: An inner cavity, wherein the top and bottom of the inner cavity are provided with grooves; The guide groove is arranged on both sides of the inner cavity, and an upper plate and a lower plate are installed inside the guide groove.

6. The high-power nickel-metal hydride battery pack for hybrid electric vehicles according to claim 1, wherein: The bracket further comprises: An upper plate, wherein a serrated structure is provided on the side surface of the upper plate, and the serrated structure on the side surface of the upper plate is engaged with the gears at both ends of the crossbar; The lower plate has a serrated structure on its side, and the serrated structure on the side of the lower plate is engaged with the gears at both ends of the crossbar, and the top of the lower plate is in contact with the upper plate.

7. The high-power nickel-metal hydride battery pack for hybrid electric vehicles according to claim 1, wherein: The support member comprises: A rotating plate, a gear is installed on the side end of the rotating plate, and the rotating plate is installed inside the inner cavity, and the gear on the side end of the rotating plate is meshed with the gear on the side end of the crossbar; The push plate is an arc-shaped structure, and the push plate is installed on the outside of the rotating plate through a spring, and the positioning rod on the inside of the push plate is inserted into the inside of the rotating plate.

8. The high-power nickel-metal hydride battery pack for hybrid electric vehicles according to claim 1, wherein: The support member further comprises: A vertical plate, with protrusions on the top and bottom of the vertical plate, and a push plate slidably installed on the side of the vertical plate; The support plate is a rectangular structure and is installed on the side of the vertical plate through a rotating shaft.

9. The high-power nickel-metal hydride battery pack for hybrid electric vehicles according to claim 1, wherein: The support member further comprises: A horizontal plate, the side of which is provided with an inclined opening, and a support plate is mounted on the horizontal plate via a rotating shaft; The slide groove is arranged on the side surfaces of both ends of the horizontal plate, and a slider is slidably installed inside the slide groove, and the slider installed inside the slide groove is installed on the side surface of the inner cavity.

10. The high-power nickel-metal hydride battery pack for hybrid electric vehicles according to claim 1, characterized in that: The ventilation member comprises: An inner groove, wherein a heat-sensitive metal sheet is installed inside the inner groove, and the inner side of the heat-sensitive metal sheet inside the inner groove is connected to the side surface of the inner groove through a spring; The inner plate has an inclined opening on its side, and the inner plate is installed inside the inner groove through a spring, and the side end of the inner plate contacts the heat-sensitive metal sheet on the side of the inner groove.

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