Electromagnetic heating cleaning device
The electromagnetic heating and cleaning device generates eddy current heating in the metal protective shell, which solves the problems of poor cleaning of foreign objects and easy burns in the prior art, and achieves a safe and efficient cleaning effect.
Patent Information
- Application Number
- CN202421020294.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-11
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-05-11
AI Technical Summary
In the existing metal protective shell opening cleaning methods, negative pressure dusting cannot effectively clean foreign objects such as water vapor, oil stains, glue stains, etc., while laser cleaning is prone to burn non-metallic components and cause production accidents.
The electromagnetic heating and cleaning device is adopted, which includes an induction coil and a heating host. The shape of the induction coil matches the opening of the metal protective shell. The heating host inputs alternating current into the induction coil, generating a changing magnetic field to generate eddy current heating in the metal protective shell, evaporating water vapor and oil pollution.
Effectively clean the water vapor and oil stains on the metal protective shell, avoiding the risk of burns from non-metallic components, and improving production safety and cleaning efficiency.
Smart Images
Figure CN222470050U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of battery processing, in particular to an electromagnetic heating cleaning device. Background Art
[0002] In the manufacturing industry, in order to protect the equipment, a metal protective shell is often set on the outside of the equipment; the metal protective shell is generally a box-shaped component with at least one opening. The equipment to be protected, such as a battery cell, is placed into the metal protective shell through the opening of the metal protective shell, and then the opening of the metal protective shell is sealed to separate the equipment from the external environment, thereby preventing the equipment from being disturbed by the external environment.
[0003] At present, the commonly used method for sealing metal protective shells is to weld a cover plate at the opening. Therefore, it is necessary to clean the water vapor, dust, oil, stains and other foreign matter at the opening of the metal protective shell; commonly used cleaning methods include negative pressure vacuum cleaning and laser cleaning; however, negative pressure vacuum can only remove some loosely adhering dust and foreign matter, but has poor cleaning effect on firmly adhering foreign matter such as water vapor, oil, glue stains, etc.; although laser cleaning can effectively remove water vapor and oil, it is easy to burn non-metallic components, such as clamps, thereby causing production accidents. Utility Model Content
[0004] The purpose of the utility model is to solve the technical problems that in the existing cleaning method of the opening of the metal protective shell, negative pressure dust extraction cannot effectively clean firmly adhered foreign matter such as water vapor, oil stains, glue stains, etc., and laser cleaning may burn non-metallic components and thus cause production accidents, and an electromagnetic heating cleaning device is provided.
[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0006] An electromagnetic heating cleaning device comprises an induction coil and a heating main unit. The shape of the induction coil is used to match the shape of an opening of a metal protective shell, and the induction coil can extend into the metal protective shell from the opening of the metal protective shell. The heating main unit and the induction coil are electrically connected, and the heating main unit is used to input alternating current to the induction coil.
[0007] The induction coil can extend into the opening of the metal protective shell. For example, if the opening of the metal protective shell and the induction coil are both rectangular, the length and width of the induction coil are respectively smaller than the length and width of the opening; if the opening of the metal protective shell and the induction coil are both circular, the diameter of the induction coil is smaller than the diameter of the opening.
[0008] The connection method between the induction coil and the heating host includes but is not limited to the use of a rigid structure for connection, such as a straight connecting rod or a full connecting rod; the use of a flexible structure for connection, such as a sling, a cable; it should be noted that the connection structure between the induction coil and the heating host should not hinder the movement of the induction coil extending into the metal protective shell, which can be avoided in various ways, such as setting the connection structure on the side of the induction coil away from the metal protective shell, or designing the connection structure to avoid the L-shaped, ∏-shaped or other curved shapes of the metal protective shell.
[0009] When the electromagnetic heating cleaning device of this scheme is in use, the induction coil can be inserted into the opening of the metal protective shell and the heating host is turned on; at this time, the changing magnetic field generated by the induction coil under the action of the alternating current of the heating host will act on the metal protective shell, thereby generating eddy currents in the metal protective shell and heating the metal protective shell, thereby being able to evaporate water vapor and oil stains on the metal protective shell; and for non-metallic structures, since their resistivity is much higher than that of the metal protective shell, eddy currents are almost not generated, and there is no risk of burns.
[0010] As a preferred embodiment of the utility model, it also includes a connecting arm, the induction coil has an outer contour surface for matching the inner wall of the opening of the metal protective shell, one end of the connecting arm is connected to a position of the induction coil away from the outer contour surface, and the other end of the connecting arm is connected to the heating host.
[0011] The connecting arm is connected to a position of the induction coil away from the outer contour surface, that is, the connecting arm is connected to an area outside the outer contour surface of the induction coil, for example, connected to both sides of the induction coil along its normal, or to a side of the induction coil away from the metal protective shell; the connecting arm and the induction coil can be either an integrated component or independent components connected to each other.
[0012] The present solution connects the heating host and the induction coil via a connecting arm, and can conveniently connect the heating host to different positions of the induction coil by setting different connecting arm shapes to adapt to the actual situation on site, for example, a straight connecting arm is set to connect the heating host above the induction coil, or a curved connecting arm is set to connect the heating host to the side of the induction coil; and because the connecting arm is connected to a position of the induction coil away from the outer contour surface, the present solution can, on the one hand, avoid interference between the connecting arm and the metal protective shell during the process of extending the induction coil into the metal protective shell, thereby resulting in restricted movement of the induction coil; on the other hand, it will not have a negative impact on the matching relationship between the outer contour surface of the induction coil and the inner wall of the opening of the metal protective shell, which is conducive to making the outer contour surface of the induction coil more closely fit the inner wall of the opening of the metal protective shell, thereby achieving better heating and cleaning effects.
[0013] As a preferred solution of the utility model, the connecting arm further comprises a first section and a second section;
[0014] One end of the first section is connected to the induction coil, and the first section is arranged at an angle to the plane where the induction coil is located;
[0015] The second section is connected to an end of the first section away from the induction coil, the second section is extended toward the outside of the induction coil, and the heating host is connected to an end of the second section away from the first section.
[0016] The first section is arranged at an angle to the plane where the induction coil is located, for example, the first section is directly arranged along the normal direction of the induction coil, or is arranged obliquely toward the center of the induction coil relative to the normal direction of the induction coil, or is arranged obliquely toward the outside of the induction coil relative to the normal direction of the induction coil; the second section extends toward the outside of the induction coil, for example, if the induction coil is rectangular, the second section is extended in a direction away from the intersection of the diagonals of the rectangle; if the induction coil is circular, the second section is extended in a direction away from the center of the circle; the first section, the second section and the induction coil can be either integrated components or independent components connected to each other.
[0017] This solution can locate the heating main unit outside the induction coil through the second section, thereby reducing the space occupied by this solution along the normal direction of the induction coil; and the first section can prevent the second section and the components connected to the second section from interfering with the metal protective shell during the process of extending the induction coil into the metal protective shell.
[0018] As a preferred solution of the utility model, an insulating protective layer is provided on the surface of the induction coil.
[0019] The specific forms of the insulating protective layer include but are not limited to coatings, protective sleeves, and adhesive tapes; its materials include but are not limited to silicone, polyimide, and polyetheretherketone.
[0020] In this solution, an insulating protective layer is arranged on the surface of the induction coil, which can avoid accidental connection and short circuit between the induction coil and the metal protective shell on the one hand; on the other hand, it can also avoid scratches between the induction coil and the metal protective shell.
[0021] As a preferred solution of the utility model, the insulating protection layer is a Teflon material component.
[0022] This proposal recommends a specific insulating protective layer material that has good insulation properties while also taking into account high temperature resistance and wear resistance, and is very suitable for the heating situation of this proposal.
[0023] As a preferred solution of the utility model, the insulating protective layer is detachably connected to the induction coil.
[0024] Specific forms of detachable connection include but are not limited to bonding, threaded connection, and snap connection.
[0025] This solution can facilitate the replacement of the insulating protective layer when the insulating protective layer is damaged.
[0026] As a preferred solution of the utility model, the heating host is also connected to a cooling component, and the cooling component is used to cool the heating host.
[0027] This solution can avoid overheating of the heating host; specific forms of cooling components include but are not limited to fans, heat sinks, and heat pipes.
[0028] As a preferred solution of the present utility model, the shape of the induction coil is rectangular.
[0029] This proposal recommends a specific induction coil shape, which is particularly suitable for the battery production industry that uses rectangular metal protective shells on a large scale.
[0030] As a preferred solution of the utility model, the inductance of the induction coil is L, 0.30μH≤L≤0.40μH.
[0031] This solution recommends a range of inductance values for the induction coil based on engineering practice, which can avoid insufficient heating effect due to too small an inductance value, and also avoid decreased current response speed, power factor, and heating uniformity due to too large an inductance value.
[0032] As a preferred solution of the utility model, the frequency of the alternating current output by the heating host is F, 20kHz≤F≤30kHz.
[0033] Based on engineering practice, this solution recommends the range of AC power frequency output by the heating host, which can avoid uneven heating of the metal protective shell due to too low frequency, and overheating or even burning of the metal protective shell due to too high frequency.
[0034] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:
[0035] An electromagnetic heating cleaning device of the utility model can generate eddy currents in a metal protective shell and heat the metal protective shell, thereby evaporating water vapor and oil stains on the metal protective shell; and for non-metallic structures, since their resistivity is much higher than that of the metal protective shell, eddy currents are hardly generated, and there is no risk of burns. BRIEF DESCRIPTION OF THE DRAWINGS
[0036] Figure 1 This is a schematic diagram of the working state of an electromagnetic heating cleaning device of the utility model;
[0037] Figure 2 It is a three-dimensional structural schematic diagram of an induction coil of an electromagnetic heating cleaning device of the utility model;
[0038] Figure 3 This is a schematic diagram of the top view of the structure of an electromagnetic heating cleaning device of the utility model;
[0039] Figure 4 It is a side structural cross-sectional schematic diagram of an electromagnetic heating cleaning device of the utility model in a working state;
[0040] Icons: 1-induction coil; 11-outer contour surface; 12-inner contour surface; 13-coil top surface; 14-coil bottom surface; 2-connecting arm; 21-first section; 22-second section; 3-heating host; 4-metal protective shell. DETAILED DESCRIPTION
[0041] The utility model is described in detail below in conjunction with the accompanying drawings.
[0042] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0043] In the description of the following specific embodiments, the terms indicating the orientation or position relationship such as "upper", "lower", "left", "right", "center", "inside", "outside", etc. are all based on the expression of the orientation or position relationship shown in the drawings, or the orientation or position relationship when the device / apparatus is usually used. These terms of orientation or position relationship are only for the convenience of description or simplification of the description in the specific embodiments, so that technicians can quickly understand the scheme, rather than indicating or implying that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific position relationship, and therefore cannot be understood as a limitation of the present invention.
[0044] The terms "horizontal", "vertical" and the like do not require the corresponding devices / components / elements to be absolutely horizontal or vertical or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted. Alternatively, it can be simply understood that the corresponding devices / components / elements are set in specific directions such as "horizontal" and "vertical", and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably an error / deviation within ±8%, more preferably an error / deviation within ±6%, more preferably an error / deviation within ±5%, and more preferably an error / deviation within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its role in the solution of the utility model.
[0045] The terms “first”, “second”, “third”, etc. are merely used to distinguish the same or similar components and should not be understood as emphasizing or implying the relative importance of specific components.
[0046] The terms "set", "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be welding, riveting, bolting, threaded connection and other commonly used connection methods in the field. It can be directly connected or indirectly connected through an intermediate medium. It can also be the internal connection of two elements.
[0047] Example 1
[0048] like Figures 1 to 4 As shown, an electromagnetic heating cleaning device adopted in this embodiment includes an induction coil 1 and a heating host 3. The shape of the induction coil 1 is used to match the shape of the opening of the metal protective shell 4, and the induction coil 1 can extend into the metal protective shell 4 from the opening of the metal protective shell 4; the heating host 3 and the induction coil 1 are electrically connected, and the heating host 3 is used to input alternating current to the induction coil 1.
[0049] like Figure 1 As shown, the metal protective shell 4 of this embodiment is specifically a rectangular aluminum shell in the battery production field, and its opening is rectangular. Therefore, correspondingly, the induction coil 1 in this embodiment is also wound into a rectangle, and the length and width of the induction coil 1 are respectively smaller than the length and width of the opening of the aluminum shell.
[0050] Furthermore, the present embodiment further comprises a connecting arm 2, the induction coil 1 has an outer contour surface 11 for matching with the inner wall of the opening of the metal protective shell 4, one end of the connecting arm 2 is connected to a position of the induction coil 1 away from the outer contour surface 11, and the other end of the connecting arm 2 is connected to the heating host 3. Figure 1 and Figure 4 As shown, the outer side surface of the rectangular induction coil 1 of this embodiment is an outer contour surface 11 used to match the inner wall of the opening of the metal protective shell 4, so the connection position of the connecting arm 2 includes the coil top surface 13 of the induction coil 1, the coil bottom surface 14 of the induction coil 1, and the inner contour surface 12 of the induction coil 1; in this embodiment, the connecting arm 2 is specifically connected to the coil top surface 13 of the induction coil 1.
[0051] Furthermore, the connecting arm 2 of this embodiment includes a first section 21 and a second section 22; one end of the first section 21 is connected to the induction coil 1, and the first section 21 is arranged at an angle with the plane where the induction coil 1 is located; the second section 22 is connected to the end of the first section 21 away from the induction coil 1, and the second section 22 is extended toward the outside of the induction coil 1, and the heating host 3 is connected to the end of the second section 22 away from the first section 21. Figure 2 and Figure 4The figure shows the specific structure of the first section 21 and the second section 22 of the present embodiment. It can be seen that in the present embodiment, the first section 21 and the second section 22 are in a “┌” shape as a whole, and the angle between the first section 21 and the plane where the induction coil 1 is located is 90°, and the projection of the first section 21 on the plane where the induction coil 1 is located is completely located inside the corresponding projection of the induction coil 1, and when the induction coil 1 is extended into the metal protective shell 4, it will not interfere with the metal protective shell 4.
[0052] Furthermore, an insulating protective layer is provided on the surface of the induction coil 1. Furthermore, the insulating protective layer is a Teflon material component, and the insulating protective layer is detachably connected to the induction coil 1. In this embodiment, a Teflon tape wrapped around the outer surface of the induction coil 1 is used as the insulating protective layer; in addition, a Teflon protective cover can also be provided on the outside of the induction coil 1.
[0053] Furthermore, the heating host 3 is also connected to a cooling assembly, which is used to cool the heating host 3. Furthermore, the cooling assembly includes a water-cooled host, which can cool the heating host 3 without air convection, thereby preventing air from interfering with the operation of the operator.
[0054] Furthermore, the inductance of the induction coil 1 is L, 0.30μH≤L≤0.40μH; the frequency of the alternating current output by the heating host 3 is F, 20kHz≤F≤30kHz. In this embodiment, L=0.34μH, F=20kHz, which has a good heating effect on the aluminum shell of this embodiment.
[0055] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. An electromagnetic heating cleaning device, characterized in that: Include: An induction coil (1), the shape of the induction coil (1) being adapted to match the shape of an opening of the metal protective shell (4), and the induction coil (1) being capable of extending from the opening of the metal protective shell (4) into the metal protective shell (4); A heating host (3), the heating host (3) and the induction coil (1) are electrically connected, and the heating host (3) is used to input alternating current to the induction coil (1).
2. The electromagnetic heating cleaning device according to claim 1, characterized in that: It also comprises a connecting arm (2), the induction coil (1) having an outer contour surface (11) for matching with the inner wall of the opening of the metal protective shell (4), one end of the connecting arm (2) being connected to a position of the induction coil (1) away from the outer contour surface (11), and the other end of the connecting arm (2) being connected to the heating main unit (3).
3. The electromagnetic heating cleaning device according to claim 2, characterized in that: The connecting arm (2) further comprises a first section (21) and a second section (22); One end of the first section (21) is connected to the induction coil (1), and the first section (21) is arranged at an angle to the plane where the induction coil (1) is located; The second section (22) is connected to an end of the first section (21) away from the induction coil (1), the second section (22) is extended toward the outside of the induction coil (1), and the heating host (3) is connected to an end of the second section (22) away from the first section (21).
4. An electromagnetic heating cleaning device according to any one of claims 1 to 3, characterized in that: An insulating protective layer is provided on the surface of the induction coil (1).
5. The electromagnetic heating cleaning device according to claim 4, characterized in that: The insulating protection layer is a Teflon material component.
6. The electromagnetic heating cleaning device according to claim 4, characterized in that: The insulating protective layer is detachably connected to the induction coil (1).
7. An electromagnetic heating cleaning device according to any one of claims 1 to 3, characterized in that: The heating host (3) is also connected to a cooling component, and the cooling component is used to cool the heating host (3).
8. An electromagnetic heating cleaning device according to any one of claims 1 to 3, characterized in that: The induction coil (1) is in the shape of a rectangle.
9. An electromagnetic heating cleaning device according to any one of claims 1 to 3, characterized in that: The inductance of the induction coil (1) is L, 0.30 μH≤L≤0.40 μH.
10. An electromagnetic heating cleaning device according to any one of claims 1 to 3, characterized in that: The frequency of the alternating current output by the heating host (3) is F, 20kHz≤F≤30kHz.