Rapid and uniform heating device for lithium battery pack

Abstract

The utility model provides a rapid even heating device for lithium battery pack, including incubator, support, far infrared heating piece, control module and power supply, the incubator is equipped with the accommodation cavity, the support is provided in the accommodation cavity, the far infrared heating piece is provided around the accommodation cavity, the control module is provided with the control module, and the power supply is provided with the control module. The control module is arranged on the outer side of the heat preservation box, the power source is arranged in the heat preservation box, and the control module is electrically connected with the far infrared heating pieces and the power source. The rapid and uniform heating device for the lithium battery pack has the beneficial effects that the rapid and uniform heating device for the lithium battery pack is reasonable in structure and uniform in heating, the device can uniformly heat the lithium battery pack placed in the heat preservation box body along the circumferential direction, and meanwhile, the heating sheet capable of emitting far infrared radiation is adopted and can penetrate through the lithium battery pack, so that the heating efficiency is improved. The inside and the outside of the lithium battery pack are heated at the same time, a good heating effect is achieved, and the use performance of the lithium battery pack in low-temperature weather is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to heating device technical field especially is a kind of fast even heating device for lithium battery package. BACKGROUND

[0002] Lithium battery has been widely used in unmanned aerial vehicle, consumer electronics such as mobile phone. In low temperature environment, due to the change of electrolyte characteristics, the decline of chemical reaction rate and the reduction of available capacity, lithium battery is prone to reduce actual available capacity, power weakening and other performance problems. In some low-temperature specific scenarios, such as aerial photography in winter in cold regions, unmanned aerial vehicle cannot work in time due to low temperature. Therefore, it is necessary to store lithium battery in a suitable temperature environment in low temperature area, which can greatly facilitate aerial photography work. There are several obvious problems in the heating process of existing lithium electronic package, one is that the outside of battery package is easily heated to rated temperature, but the inside of battery does not reach target heating temperature; the second is the problem of uneven heating, the battery package in the heating constant temperature may have the problem of uneven heating of single battery in the package due to different positions of each battery in the package from heat source.

[0003] Therefore, it is necessary to improve the prior art. INVENTION CONTENTS

[0004] The utility model solves the technical problems that: provide a kind of lithium battery package fast even heating device that can even heat to target temperature for each battery in battery package.

[0005] In order to solve the above technical problems, the technical scheme adopted by the utility model is as follows: a kind of lithium battery package fast even heating device, including heat preservation box, far infrared heating sheet, control box and power supply, the heat preservation box is equipped with containing cavity, the far infrared heating sheet is arranged around the containing cavity, the control box is set to the outside of the heat preservation box, the power supply is set in the heat preservation box, the control box is equipped with main control board, the main control board is electrically connected with the far infrared heating sheet and power supply respectively.

[0006] Further, the heat preservation box includes box body and inner container, the box body and inner container are filled with heat preservation material, and the far infrared heating sheet is arranged on the outer wall of the inner container.

[0007] Further, the box body is a cylindrical box body, and the inner container is a cylindrical inner container.

[0008] Further, the heat preservation material is polyurethane foaming material or PU foam cotton.

[0009] Further, the containing cavity is provided with a support, the support includes a leg, a layer plate and a leg fixing member, and the leg is fixedly connected with the leg fixing member through the layer plate. Further, the containing cavity is provided with a support, the support includes a leg, a layer plate and a leg fixing member, and the leg is fixedly connected with the leg fixing member through the layer plate.

[0010] Further, the height of the far-infrared heating sheet is adapted to the depth of the accommodating cavity.

[0011] Further, the far-infrared heating sheet emits infrared rays with a wavelength of 5-1000 microns.

[0012] Further, the far-infrared heating sheet is a semiconductor PET heating film or a semiconductor PI heating film.

[0013] Further, the incubator comprises a cover, which is connected to the box body through a hinge, and is provided with a handle and a sealing ring on the side facing the box body.

[0014] Further, the control box is provided with a touch screen, which is electrically connected to the main control board.

[0015] The lithium battery pack rapid and uniform heating device has the advantages that the lithium battery pack placed in the box body of the incubator can be uniformly heated in the circumferential direction, the heating sheet capable of emitting far-infrared radiation is adopted, the lithium battery pack can be penetrated and heated from the inside and outside, the heating effect is good, and the use performance of the lithium battery pack in low-temperature weather is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0016] The specific structure of the lithium battery pack rapid and uniform heating device will be described in detail below with reference to the drawings:

[0017] Figure 1 It is an explosion structure diagram of the lithium battery pack rapid and uniform heating device of the utility model;

[0018] Figure 2 It is a structure diagram of the bracket of the lithium battery pack rapid and uniform heating device of the utility model;

[0019] 1-incubator; 11-support; 12-inner container; 13-cover; 131-handle; 132-sealing ring;

[0020] 2-far-infrared heating sheet;

[0021] 3-control box; 31-touch screen;

[0022] 4-bracket; 41-lower support leg; 42-lower support leg fixing member; 43-lower layer plate; 44-upper support leg; 45-upper support leg fixing member; 46-upper layer plate; 47-support leg fixing member. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0024] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0025] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include one or more features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0026] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be broadly understood, for example, it can be connected, or detachable, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate media, or the communication or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0027] In the present application, unless otherwise specifically defined and limited, the first feature "above" or "below" the second feature can include the direct contact between the first and second features, or the contact between the first and second features through another feature between them. Moreover, the first feature "above", "above" and "above" the second feature includes the first feature directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes the first feature directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0028] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0029] Example

[0030] Please see Figure 1 as well as Figure 2 This embodiment provides a rapid and uniform heating device for lithium battery packs, including an insulation box 1, a far-infrared heating element 2, a control box 3, and a power supply. The insulation box 1 has a receiving cavity, and the far-infrared heating element 2 is arranged around the receiving cavity. The control box 3 is located on the outside of the insulation box 1, and the power supply is located in the insulation box 1. The control box 3 has a main control board, which is electrically connected to the far-infrared heating element 2 and the power supply.

[0031] In practice, a control box 3 is installed on the outside of the insulation box 1 to control the working status of the insulation box. A cavity for accommodating the lithium battery pack is set inside the insulation box 1. The power source is the battery built into the insulation box 1. A ring of far-infrared heating elements 2 is wrapped around the cavity. By operating the buttons on the control box 3, the main control board controls the power supply to power the far-infrared heating elements 2, thereby achieving 360-degree horizontal heating of the lithium battery pack located in the cavity. Since the infrared rays emitted by the far-infrared heating elements 2 have strong penetrating power, they can rapidly heat up the inside and outside of the lithium battery pack at the same time, thus achieving the effect of rapid and uniform heating of the lithium battery pack.

[0032] The bottom of the insulated box 1 is provided with a support 11, which can be used to support the insulated box.

[0033] In a preferred embodiment, the insulated box 1 includes a box body and an inner liner 12, with insulation material filling the space between the box body and the inner liner 12, and the far-infrared heating element 2 disposed on the outer wall of the inner liner 12.

[0034] In specific implementation, the heat preservation box 1 is composed of a box body and the inner container 12, and a heat preservation material is filled between the box body and the inner container 12, so as to ensure the heat preservation effect of the heat preservation box 1. The far-infrared heating sheet 2 is arranged on the outer wall of the inner container 12. Since the infrared penetration is strong, the arrangement of the far-infrared heating sheet 2 on the outer wall of the inner container 12 will not affect the heating effect, and can also avoid damage caused by the collision between the objects placed in the inner container 12 and the far-infrared heating sheet 2.

[0035] As a preferred embodiment in the present embodiment, the box body is a cylindrical box body, and the inner container 12 is a cylindrical inner container.

[0036] In specific implementation, the cylindrical box body and the cylindrical inner container can make the distance from the lithium battery pack placed in the inner container 12 to the far-infrared heating sheet 2 almost equal in the radial direction, so as to ensure the uniformity of the heating of the lithium battery pack.

[0037] As a preferred embodiment in the present embodiment, the heat preservation material is polyurethane foaming material or PU foam cotton.

[0038] In specific implementation, the polyurethane foaming material and the PU foam cotton have a low thermal conductivity, can effectively prevent heat transfer, and keep the temperature stable. The polyurethane foaming material and the PU foam cotton have a low density and a light weight, which not only facilitates transportation and storage, but also can provide good heat insulation effect without increasing too much weight due to the light weight. The polyurethane foaming material and the PU foam cotton can be recycled, which conforms to the material circulation concept of circular economy and ensures the environmental protection advantage of the heat preservation box.

[0039] As a preferred embodiment in the present embodiment, the accommodating cavity is provided with a support 4, the support 4 includes a support leg, a layer plate and a support leg fixing member, and the support leg is fixedly connected with the layer plate and the support leg fixing member.

[0040] In specific implementation, in order to ensure the heating efficiency, the accommodating cavity is provided with a support, and multiple lithium battery packs can be placed through multiple supports, so as to simultaneously heat the multiple lithium battery packs. The support can also limit the lithium battery pack, so that the lithium battery pack is located at the position with the highest heating efficiency in the accommodating cavity, so as to ensure the heating effect.

[0041] Specifically, the support 4 comprises support legs, layer plates and support leg fixing members, and the following will take two-layer support as an example to be described, the top end of the lower layer support leg 41 is provided with a lower layer support leg stud, the lower layer support leg fixing member 42 is correspondingly provided with a lower layer support leg screw hole, the diameter of the lower layer support leg stud is smaller than the diameter of the lower layer support leg 41, the lower layer support leg stud is passed through the lower layer plate 43 and is fixedly connected with the lower layer support leg fixing member 42 arranged on the upper surface of the lower layer plate 43, so that the lower layer plate 43 can be limited between the lower layer support leg 41 and the lower layer support leg fixing member 42, each layer plate is provided with at least three lower layer support legs, the top end of the lower layer support leg fixing member 42 is provided with a support leg groove, the bottom end of the upper layer support leg 44 can be inserted into the support leg groove of the lower layer support leg fixing member 42 to be fixed, the top end of the upper layer support leg 44 is provided with an upper layer support leg stud, the upper layer support leg fixing member 45 is correspondingly provided with an upper layer support leg screw hole, the diameter of the upper layer support leg stud is smaller than the diameter of the upper layer support leg 44, the upper layer support leg stud is passed through the upper layer plate 46 and is fixedly connected with the upper layer support leg fixing member 45 arranged on the upper surface of the upper layer plate 46, so that the upper layer plate 47 can be limited between the upper layer support leg 44 and the upper layer support leg fixing member 45, and the two-layer support can be obtained.

[0042] In order to ensure that the support 4 cannot move in the containing cavity of the incubator 1, the bottom surface of the containing cavity is provided with a support leg fixing member 47 corresponding to the support leg, the top end of the support leg fixing member 47 is provided with a support leg groove, and the bottom end of the lower layer support leg 41 is inserted into the support leg groove of the support leg fixing member 47, so that the fixing of the support 4 can be realized.

[0043] As a preferred embodiment in the present embodiment, the height of the far-infrared heating sheet 2 is adapted to the depth of the containing cavity.

[0044] In specific implementation, in order to ensure the heating effect, the height of the far-infrared heating sheet 2 surrounding the outside of the containing cavity is adapted to the depth of the containing cavity, so that the good heating effect on the contents of the containing cavity can be ensured.

[0045] As a preferred embodiment in the present embodiment, the infrared wavelength emitted by the far-infrared heating sheet 2 is 5-1000 microns.

[0046] In specific implementation, the far-infrared heating technology with a wavelength of 5-1000 microns is adopted, so that the inside and outside of the object to be heated can be heated at the same time, and the effects of fast heating speed and low power consumption can be achieved.

[0047] As a preferred embodiment in the present embodiment, the far-infrared heating sheet 2 is a semiconductor PET heating film or a semiconductor PI heating film.

[0048] In specific implementation, the semiconductor PET heating film or the semiconductor PI heating film is adopted as the far-infrared heating sheet, and the advantages of uniform heating, easy installation, energy saving, fast temperature rise and small thermal inertia can be achieved.

[0049] As preferred in the embodiment, the incubator 1 comprises a cover 13 hingedly connected to the box body, the cover 13 is provided with a handle 131, and a sealing ring 132 is arranged on the side of the cover 13 facing the box body.

[0050] In specific implementation, in order to facilitate the taking and placing of the lithium battery pack, the incubator 1 comprises the cover 13, the cover 13 is movably connected to the box body through a hinge, and the sealing ring 132 is arranged on the side of the cover 13 facing the box body, so that the air tightness of the accommodating cavity of the box body can be ensured when the cover 13 is closed on the box body, heat dissipation to the outside is avoided, and energy waste is avoided.

[0051] The cover 13 is provided with the handle 131 on the side away from the box body, and the cover 13 is closed on the box body, so that the user can move the incubator 1 through the handle 131.

[0052] As preferred in the embodiment, the control box 3 is provided with a touch screen 31, and the touch screen 31 is electrically connected to the main control board.

[0053] In specific implementation, in order to facilitate the operation of the user, the control box 3 is provided with the touch screen 31, and the touch screen 31 is electrically connected to the main control board. The user can operate the touch screen 31 to send corresponding instructions to the main control board, so that the main control board controls the working mode of the far-infrared heating sheet, so that the temperature in the accommodating cavity is appropriate. The main control board is also connected with a temperature and humidity probe, and the temperature and humidity probe is arranged in the accommodating cavity, so that the user can check the temperature and humidity state of the internal environment of the incubator through the touch screen 31 in real time.

[0054] As can be seen from the above description, the lithium battery pack rapid and uniform heating device has the advantages that the structure is reasonable, and heating is uniform. The device can uniformly heat the lithium battery pack placed in the box body of the incubator in the circumferential direction, and the heating sheet capable of emitting far-infrared radiation can penetrate the lithium battery pack and heat the inside and outside of the lithium battery pack at the same time, so that the lithium battery pack has good heating effect and use performance in low-temperature weather.

[0055] Those skilled in the art can easily understand that the above-mentioned various embodiments can be freely combined and superimposed without conflict.

[0056] The above-mentioned is only an embodiment of the utility model, and does not limit the patent range of the utility model, and equivalent structures or equivalent process transformations obtained by using the contents of the utility model specification and drawings, or direct or indirect application in other related technical fields are also included in the patent protection range of the utility model.

Claims

1. A rapid and uniform heating device for a lithium battery pack, characterized by: The heat preservation box comprises a heat preservation box, a far infrared heating sheet, a control box and a power supply, the heat preservation box is internally provided with a containing cavity, the far infrared heating sheet is arranged around the containing cavity, the control box is arranged outside the heat preservation box, the power supply is arranged in the heat preservation box, the control box is internally provided with a main control board, and the main control board is electrically connected with the far infrared heating sheet and the power supply respectively.

2. The heating device of claim 1, wherein: The heat preservation box comprises a box body and an inner container, the box body and the inner container are filled with a heat preservation material, and the far infrared heating sheet is arranged on the outer wall of the inner container.

3. The heating device of claim 2, wherein: The box body is a cylindrical box body, and the inner container is a cylindrical inner container.

4. The heating device of claim 2, wherein: The heat preservation material is polyurethane foaming material or PU foam cotton.

5. The heating device of claim 1, wherein: The containing cavity is provided with a support, the support comprises a supporting leg, a layer plate and a supporting leg fixing piece, and the supporting leg is fixedly connected with the supporting leg fixing piece through the layer plate.

6. The heating device of claim 1, wherein: The height of the far infrared heating sheet is matched with the depth of the containing cavity.

7. The heating device of claim 1, wherein: The infrared wavelength emitted by the far infrared heating sheet is 5-1000 microns.

8. The heating device of claim 1, wherein: The far infrared heating sheet is a semiconductor PET heating film or a semiconductor PI heating film.

9. The heating device of claim 2, wherein: The heat preservation box comprises a box cover, the box cover is connected with the box body through a hinge, the box cover is provided with a handle, and the side of the box cover facing the box body is provided with a sealing ring.

10. The heating device of claim 1, wherein: The control box is provided with a touch screen, and the touch screen is electrically connected with the main control board.

Images