CN115441095A

CN115441095A - New forms of energy group battery that severe cold weather used

Info

Publication number: CN115441095A
Application number: CN202210999474.6A
Authority: CN
Inventors: 张斌
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-08-19
Filing date: 2022-08-19
Publication date: 2022-12-06

Abstract

The invention discloses a new energy battery pack for severe cold weather, which belongs to the field of new energy batteries and comprises a battery pack, wherein the upper end of the battery pack is provided with a positive electrode binding post and a negative electrode binding post, the outer wall of the battery pack is detachably connected with a protective sleeve, a heat insulation sleeve is arranged outside the protective sleeve, heat generated in the use process of the battery pack can be collected and stored by paraffin through heat conduction particles, a heat insulation bag can be extruded and extruded by the subsequent thermal expansion of the paraffin through the thermal expansion of the paraffin, the thermal insulation bag is mutually contacted to form a sealing wall, the aim of preventing the reverse transmission of the heat is effectively achieved, when the external temperature is reduced to low temperature, liquid water is changed into a solid state, the volume is increased, a second magnetic sheet is pushed to be close to a first magnetic sheet through an ejector rod, a porous lug props away a heat insulation film, an air vent is opened, the heat stored by the paraffin can be discharged again through the heat conduction particles, and finally the cycle process of ' heat absorption ', ' heat storage ' heat release ' can be realized, and the battery can be effectively prevented from being incapable of normally working in severe cold weather.

Description

New forms of energy group battery that severe cold weather was used

Technical Field

The invention relates to the field of new energy batteries, in particular to a new energy battery pack for severe cold weather.

Background

Batteries of new energy vehicles can be divided into two broad categories, namely batteries and fuel cells. With the development of new energy vehicles, the innovation of new energy vehicle batteries is more and more. The new energy automobile battery is a novel automobile battery which uses new energy technology to reduce the emission pollution of greenhouse gases.

Generally, the activity of the battery is limited by various factors, wherein the temperature has the most obvious purpose on the activity of the battery, the intuitive expression is that the battery runs farther in summer than in winter, the traditional new energy battery has poor cold resistance, the optimal temperature for use is about 25 ℃, the activity is reduced if the battery is in a cold environment for a long time, the endurance is poor, and even the risk of damaging the battery and reducing the service life of the battery is damaged in the past.

Therefore, a new energy battery pack for severe cold weather is needed.

Disclosure of Invention

1. Technical problem to be solved

The invention aims to provide a new energy battery pack for severe cold weather, which can collect and store heat generated in the using process of the battery pack by paraffin through heat conducting particles, can extrude temperature insulation bags through the self thermal expansion of the paraffin to be contacted with each other subsequently to form a sealing wall, and effectively achieves the purpose of preventing the reverse transmission of the heat.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

A new energy battery pack for severe cold weather comprises a battery pack, wherein positive and negative electrode binding posts are arranged at the upper end of the battery pack, a protective sleeve is detachably connected to the outer wall of the battery pack, a heat insulation sleeve is arranged outside the protective sleeve, a pair of mounting holes are formed in the protective sleeve and the heat insulation sleeve respectively, an insulation sleeve is fixedly connected to the inner wall of each mounting hole, a plurality of pairs of water tanks are fixedly connected to the outer end of each heat insulation sleeve, an elastic waterproof sleeve is fixedly connected to the inner wall of each water tank, a sliding plate sliding on the inner wall of each water tank is fixedly connected to the outer end of each elastic waterproof sleeve, a pair of ejector rods is fixedly connected to one end, away from the elastic waterproof sleeve, of each sliding plate, and a heat storage box is fixedly connected between each protective sleeve and each heat insulation sleeve;

the heat storage box comprises a box body, a pair of heat insulation bags is fixedly connected to the inner wall of the box body, heat insulation liquid is filled in the heat insulation bags, a first partition plate and a second partition plate are slidably connected to the inner wall of the box body, a ventilating net is fixedly connected to the inner portion of the first partition plate, a push-pull plate is fixedly connected between the ventilating net and the second partition plate, one end of a push rod penetrates through a heat insulation sleeve, the box body and the second partition plate respectively in a movable mode, a pair of heat insulation films is fixedly connected to the inner wall of the box body, a porous protruding block corresponding to the heat insulation films is slidably connected to the inner wall of the box body, a first magnetic sheet is fixedly connected to one end of the porous protruding block, a second magnetic sheet close to the first magnetic sheet is fixedly connected to the top end of the push rod, and heat storage liquid is filled between the second partition plate and the box body.

Further, a pair of rubber sleeves is fixedly connected between the first partition plate and the second partition plate, heat-conducting particles are filled between the pair of rubber sleeves, and the filling rate of the heat-conducting particles is 60-80%.

Furthermore, the heat insulation film is made of elastic materials, a plurality of air holes are formed in the heat insulation film, and the air holes are in a closed state in an initial state.

Furthermore, a plurality of through holes are formed in the porous convex blocks, and the through holes correspond to the air holes one by one.

Furthermore, the heat storage liquid is paraffin, a hollow pipe sliding outside the ejector rod is fixedly connected between the second partition plate and the box body, and the second partition plate is made of a heat conduction metal material.

Furthermore, an annular groove is formed in the box body, and the heat insulation bag extends to the inside of the annular groove in an extrusion state.

Furthermore, a plurality of small holes are formed in the outer end of the heat insulation sleeve, and the inner walls of the small holes are fixedly connected with inflatable bags.

Further, the outer wall fixedly connected with liquid reserve tank of protective sheath, the inside packing of liquid reserve tank has low condensation point solution.

Further, the inner wall of liquid reserve tank rotates and is connected with the bull stick, the outer wall fixedly connected with of bull stick is many to the float rod, the float rod adopts the plastics material.

Further, the outer wall fixedly connected with heat transfer case of insulation cover, the one end activity of bull stick runs through to the inside of heat transfer case, and rotates and connect in the inner wall of heat transfer case, fixedly connected with communicating pipe between heat transfer case and the box, it is inside that the thermal-insulated membrane is located the communicating pipe, the outer wall fixedly connected with of bull stick is a pair of heat extraction board that is close to communicating pipe, a plurality of heat transfer holes have been seted up to the outer end of heat transfer case.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

(1) This scheme can be collected and save the heat that produces in the group battery use through the heat conduction granule by paraffin, follow-up accessible paraffin self is heated the inflation and will extrude the temperature-isolating bag, and make its contact with each other, form "sealed wall", effectively reach the purpose that prevents the reverse transmission of heat, when ambient temperature drops to low temperature, liquid water becomes solid-state, the volume increase, begin to promote the second magnetic sheet through the ejector pin and be close to first magnetic sheet, make porous lug top open the temperature-isolating membrane, the bleeder vent is opened, can discharge out the heat that paraffin was stored once more through the heat conduction granule, finally can realize "heat absorption" - "heat-retaining" - "exothermic" cyclic process, effectively avoid the battery to work normally in severe cold weather.

(2) Through being provided with the second baffle that heat conduction granule and heat conduction material made, can be collected the heat that produces in the group battery use by paraffin, paraffin self has the property of heat-retaining, and the heat conduction granule can compensate the not good defect of paraffin heat conductivility, and then inside long-term heat storage to paraffin with the group battery, paraffin heaies up and reaches the fusing point, becomes liquid paraffin, changes the storage heat.

(3) When the paraffin is heated to a specific temperature, for example, the paraffin reaches a melting point temperature, the heat insulation bags can be extruded through the second partition plate, the push-pull plate and the first partition plate, the pair of heat insulation bags become slender and are in mutual contact, the heat blocking effect is achieved, heat exchange is further prevented, the phenomenon that the heat of the battery pack is lost due to the fact that the external temperature is too low is avoided, and then reverse heat transfer is caused.

(4) When the external temperature reaches below 0 ℃, liquid water is condensed into solid water, the volume of the water is increased in the solid-liquid two-phase conversion process, the elastic waterproof sleeve is propped up, the sliding plate and the ejector rod are gradually pushed to move until the second magnetic sheet is close to the first magnetic sheet, the porous lug props the thermal insulation film under the action of repulsion, the air holes in the thermal insulation film are changed into an open state from a closed state, and therefore the heat of the heat conducting particles is continuously transferred to the outside, and the processes of 'heat absorption', 'heat storage', 'heat release' are finally achieved.

(5) Through setting up the liquid reserve tank, the inside packing of liquid reserve tank has low condensation point solution, can be alcohol, and at the car in-process of traveling, the float rod is along with solution constantly rocks, with the continuous reciprocal rotation about of heat extraction board, can pass through the heat transfer hole with the heat of gathering between a pair of heat extraction board and transmit to between protective sheath and the insulation cover fast, increases heat exchange efficiency, further plays cold-proof purpose of fending off.

Drawings

FIG. 1 is a schematic overall sectional view of the present invention;

FIG. 2 is a schematic view of the overall internal structure of the present invention;

FIG. 3 is a schematic view of the internal structure of the water tank and the tank body of the present invention;

FIG. 4 is an enlarged schematic view of the structure at A in FIG. 3 according to the present invention;

FIG. 5 is a schematic view of the internal structure of the box body after the push rod moves according to the present invention;

FIG. 6 is a schematic view of the movement structure of the porous bump of the present invention;

FIG. 7 is a schematic diagram showing a comparison structure of air holes before and after the extrusion of the thermal insulation film of the present invention;

FIG. 8 is a schematic view of the entire internal structure of embodiment 3 of the present invention;

FIG. 9 is an enlarged view of the structure at B in FIG. 8;

FIG. 10 is a schematic perspective view of the interior of the heat exchange box of the present invention;

fig. 11 is a schematic view of the floating rod movement process structure of the present invention.

The numbering in the figures illustrates:

1 a battery pack; 2, protecting the sleeve; 3, insulating sleeves; 4, insulating sleeve; 5, a water tank; 51 an elastic waterproof jacket; 52 a slide plate; 53, a mandril; 54 a second magnetic sheet; 6, a heat storage box; 61, a box body; 62 a thermal insulation bag; 63 a first partition plate; 64 air permeable net; 65 a second separator plate; 66 a porous bump; 67 heat insulation film; 671 air holes; 68 a rubber sleeve; 69 a first magnetic sheet; 7, inflating the air bag; 8, a liquid storage tank; 9, a heat exchange box; 91 rotating the rod; 92 heat discharge plates; 93 a communicating pipe; 94 a float rod; 95 heat exchanging holes.

Detailed Description

The drawings in the embodiments of the invention will be incorporated below; the technical scheme in the embodiment of the invention is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the invention; but not all embodiments, are based on the embodiments of the invention; all other embodiments obtained by a person skilled in the art without making any inventive step; all fall within the scope of protection of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.

Example 1:

referring to fig. 1-2, a new energy battery pack for severe cold weather comprises a battery pack 1 with positive and negative electrode binding posts arranged at the upper end, a protective sleeve 2 (adopting heat conduction material) detachably connected to the outer wall of the battery pack 1, a heat insulation sleeve 3 arranged outside the protective sleeve 2, a pair of mounting holes respectively formed in the protective sleeve 2 and the heat insulation sleeve 3, an insulation sleeve 4 fixedly connected to the inner wall of each mounting hole, and a plurality of pairs of water tanks 5 fixedly connected to the outer end of the heat insulation sleeve 3.

Referring to fig. 3-5, an elastic waterproof jacket 51 is fixedly connected to the inner wall of the water tank 5, a sliding plate 52 sliding on the inner wall of the water tank 5 is fixedly connected to the outer end of the elastic waterproof jacket 51, a pair of push rods 53 is fixedly connected to one end of the sliding plate 52 far away from the elastic waterproof jacket 51, and a heat storage tank 6 is fixedly connected between the protective jacket 2 and the heat insulation jacket 3;

the heat storage box 6 comprises a box body 61, a pair of heat insulation bags 62 is fixedly connected to the inner wall of the box body 61, heat insulation liquid is filled inside the heat insulation bags 62, a first partition plate 63 and a second partition plate 65 are slidably connected to the inner wall of the box body 61, a breathable net 64 is fixedly connected to the inside of the first partition plate 63, a push-pull plate is fixedly connected between the breathable net 64 and the second partition plate 65, one end of a push rod 53 sequentially penetrates through the heat insulation sleeve 3, the box body 61 and the second partition plate 65 respectively, a pair of heat insulation films 67 is fixedly connected to the inner wall of the box body 61, a porous lug 66 corresponding to the heat insulation film 67 is slidably connected to the inner wall of the box body 61, a first magnetic sheet 69 is fixedly connected to one end of the porous lug 66, a second magnetic sheet 54 close to the first magnetic sheet 69 is fixedly connected to the top end of the push rod 53, and heat storage liquid is filled between the second partition plate 65 and the box body 61.

A pair of rubber sleeves 68 is fixedly connected between the first partition plate 63 and the second partition plate 65, and heat conduction particles are filled between the pair of rubber sleeves 68, wherein the filling rate of the heat conduction particles is 60-80%.

The heat conducting particles are made of heat conducting metal materials, such as: copper, aluminium, etc. fill not easily to be full, avoid being heated the inflation, lead to rubber sleeve 68 to prop and split, rubber sleeve 68 has certain elastic capacity.

The heat insulation film 67 is made of an elastic material, a plurality of air holes 671 are formed in the heat insulation film 67, and the air holes 671 are in a closed state in an initial state.

The porous bumps 66 are provided with a plurality of through holes, and the through holes correspond to the air holes 671 one by one.

The heat storage liquid is paraffin, a hollow pipe sliding outside the ejector rod 53 is fixedly connected between the second partition plate 65 and the box body 61, and the second partition plate 65 is made of a heat-conducting metal material.

Through being provided with the second baffle 65 that heat conduction granule and heat conduction material made, can be collected the heat that produces in the group battery use by paraffin, paraffin self has the nature of heat-retaining, and heat conduction granule can compensate the not good defect of paraffin heat conductivility, "set up a heat transfer's bridge" between group battery and paraffin, and then can be long-term with the heat storage of group battery to paraffin inside, paraffin heaies up and reaches the melting point, becomes liquid paraffin, changes the storage heat.

Referring to fig. 6-7, in operation: when the paraffin is heated to a specific temperature, for example, the paraffin reaches a melting point temperature (about 50 ℃), the paraffin is heated and expands to extrude the heat insulation bags 62 through the second partition plate 65, the push-pull plate and the first partition plate 63, each pair of heat insulation bags 62 become slender and are in contact with each other, the effect of heat blocking is achieved, heat exchange is further prevented, the phenomenon that the heat of the battery pack is dissipated due to the fact that the external temperature is too low is avoided, and the heat is forced to be reversely transferred; when the external temperature reaches below 0 ℃, liquid water in the water tank 5 outside the heat-insulating jacket 3 is condensed into solid water, the volume of the water is increased in the solid-liquid two-phase conversion process, the elastic waterproof jacket 51 is supported, the sliding plate 52 and the ejector rod 53 are gradually pushed to move until the second magnetic sheet 54 is close to the first magnetic sheet 69, the porous bumps 66 prop against the heat-insulating film 67 under the action of repulsion force, the air holes 671 on the heat-insulating film 67 are changed from a closed state to an open state, and therefore heat stored in paraffin is continuously transferred to the outside through the heat-conducting particles, and finally the processes of heat absorption, heat storage and heat release are achieved.

A plurality of small holes are arranged at the outer end of the heat-insulating sleeve 3, and the inner walls of the small holes are fixedly connected with inflatable bags 7.

The air pressure between the protective sleeve 2 and the heat-insulating sleeve 3 can be prevented from increasing, meanwhile, the raised inflatable bag 7 can also remind a user, the temperature is too low, and heat-insulating measures can be taken in time.

Example 2:

referring to fig. 5, embodiment 2 is different from embodiment 1 in that the following technical features are added: an annular groove is formed in the box body 61, and the heat insulation bag 62 extends to the inside of the annular groove in an extrusion state.

By extruding the thermal insulation bag 62, the thermal insulation bag can be 'plugged' into the annular groove, as shown in the figure, the thermal insulation bag 62 forms an annular structure to carry out heat preservation on the box body 61 in all directions.

Example 3:

referring to fig. 8-11, embodiment 3 differs from embodiment 1 in that the following technical features are added: the outer wall of the protective sleeve 3 is fixedly connected with a liquid storage tank 8, and the liquid storage tank 8 is filled with a low-condensation-point solution;

the inner wall of the liquid storage tank 8 is rotatably connected with a rotating rod 91, the outer wall of the rotating rod 91 is fixedly connected with a plurality of pairs of floating rods 94, and the floating rods 94 are made of plastic materials;

the outer wall fixedly connected with heat transfer case 9 of insulation cover 3, the one end activity of bull stick 91 runs through to the inside of heat transfer case 9, and rotates to connect in the inner wall of heat transfer case 9, and fixedly connected with communicating pipe 93 between heat transfer case 9 and the box 61 separates that temperature membrane 67 is located communicating pipe 93 inside, and the outer wall fixedly connected with of bull stick 91 is a pair of row's of being close to communicating pipe 93 hot plate 92, and a plurality of heat transfer holes 95 have been seted up to the outer end of heat transfer case 9.

The dotted lines show the displacement position during the movement of the float rod 94.

When in work: the liquid storage tank 8 is filled with a low freezing point solution which can be alcohol or other low freezing point solutions, and cannot be solid at a continuous low temperature, the floating rod 94 is made of a plastic material with low density (the density is smaller than the low freezing point solution), and can continuously shake along with the solution in the driving process of the automobile, so that the heat discharge plates 92 continuously rotate in a reciprocating manner from side to side, heat gathered between the pair of heat discharge plates 92 can be quickly transferred to the protective sleeve 2 and the insulating sleeve 3 through the heat exchange holes 95, the heat exchange efficiency is increased, and the purposes of keeping warm and dispelling cold are further achieved; but are merely preferred embodiments of the invention; the scope of the invention is not limited thereto; any person skilled in the art is within the technical scope of the present disclosure; the technical scheme and the improved concept of the invention are equally replaced or changed; are intended to be covered by the scope of the present invention.

Claims

1. The utility model provides a new forms of energy group battery that severe cold weather was used, is provided with group battery (1) of positive negative pole terminal including the upper end, its characterized in that: the outer wall of the battery pack (1) is detachably connected with a protective sleeve (2), a heat insulation sleeve (3) is arranged outside the protective sleeve (2), a pair of mounting holes are formed in the protective sleeve (2) and the heat insulation sleeve (3), an insulating sleeve (4) is fixedly connected with the inner wall of each mounting hole, a plurality of pairs of water tanks (5) are fixedly connected with the outer end of the heat insulation sleeve (3), an elastic waterproof sleeve (51) is fixedly connected with the inner wall of each water tank (5), a sliding plate (52) sliding on the inner wall of each water tank (5) is fixedly connected with the outer end of each elastic waterproof sleeve (51), a pair of ejector rods (53) is fixedly connected with one end, far away from the elastic waterproof sleeve (51), of each sliding plate (52), and a heat storage box (6) is fixedly connected between the protective sleeve (2) and the heat insulation sleeve (3);

the heat storage box (6) comprises a box body (61), a pair of heat insulation bags (62) is fixedly connected to the inner wall of the box body (61), heat insulation liquid is filled in the heat insulation bags (62), a first partition plate (63) and a second partition plate (65) are connected to the inner wall of the box body (61) in a sliding mode, a breathable net (64) is fixedly connected to the inner portion of the first partition plate (63), a push-pull plate is fixedly connected between the breathable net (64) and the second partition plate (65), one end of a push rod (53) penetrates through the heat storage sleeve (3), the box body (61) and the second partition plate (65) in a movable mode respectively, a pair of heat insulation films (67) is fixedly connected to the inner wall of the box body (61), a porous bump (66) corresponding to the heat insulation films (67) is connected to the inner wall of the box body (61) in a sliding mode, a first magnetic sheet (69) is fixedly connected to one end of the porous bump (66), a second magnetic sheet (54) close to the first magnetic sheet (69) is fixedly connected to the top end of the push rod (53), and liquid is filled between the second partition plate (65) and the box body (61).

2. The new energy battery pack for severe cold weather according to claim 1, wherein: a pair of rubber sleeves (68) is fixedly connected between the first partition plate (63) and the second partition plate (65), heat conduction particles are filled between the pair of rubber sleeves (68), and the filling rate of the heat conduction particles is 60-80%.

3. The new energy battery pack for severe cold weather according to claim 1, wherein: the heat insulation film (67) is made of elastic materials, a plurality of air holes (671) are formed in the heat insulation film (67), and the air holes (671) are in a closed state in an initial state.

4. The new energy battery pack for severe cold weather according to claim 3, wherein: a plurality of through holes are formed in the porous convex block (66), and the through holes correspond to the air holes (671) one to one.

5. The new energy battery pack for severe cold weather according to claim 4, wherein: the heat storage liquid is paraffin, a hollow pipe sliding outside the ejector rod (53) is fixedly connected between the second partition plate (65) and the box body (61), and the second partition plate (65) is made of a heat conduction metal material.

6. The new energy battery pack for severe cold weather according to claim 5, wherein: the inside of box (61) is seted up the ring channel, under heat insulation bag (62) extrusion state, extend to the inside of ring channel.

7. The new energy battery pack for severe cold weather according to claim 6, wherein: the outer end of the heat insulation sleeve (3) is provided with a plurality of small holes, and the inner walls of the small holes are fixedly connected with inflatable bags (7).

8. The new energy battery pack for severe cold weather according to claim 7, wherein: the outer wall fixedly connected with liquid reserve tank (8) of protective sheath (3), the inside packing of liquid reserve tank (8) has low condensation point solution.

9. The new energy battery pack for severe cold weather according to claim 8, wherein: the inner wall of liquid reserve tank (8) rotates and is connected with bull stick (91), the outer wall fixedly connected with of bull stick (91) is many to floating rod (94), floating rod (94) adopt the plastics material.

10. The new energy battery pack for severe cold weather according to claim 9, wherein: the outer wall fixedly connected with heat exchange case (9) of heat preservation cover (3), the one end activity of bull stick (91) runs through to the inside of heat exchange case (9), and rotates and connect in the inner wall of heat exchange case (9), fixedly connected with communicating pipe (93) between heat exchange case (9) and box (61), it is inside that heat insulation membrane (67) is located communicating pipe (93), the outer wall fixedly connected with of bull stick (91) is a pair of heat extraction board (92) that are close to communicating pipe (93), a plurality of heat transfer holes (95) have been seted up to the outer end of heat exchange case (9).