Heater, air conditioner and vehicle

Abstract

The utility model provides a heater, an air conditioner and a vehicle. Wherein the heater comprises a heating assembly, an electric control board and a shell, the electric control board is contained in the shell, and a first insertion piece is arranged on the electric control board; an electrode of the heating assembly is connected with a plug-in terminal, the plug-in terminal extends into the shell and is in plug-in connection with the first plug-in piece, and the electric control board is used for controlling the output power of the heating assembly. The heating core body of the heating assembly and the control panel are electrically connected to form the integrated module through cooperation of the plug-in terminal and the first plug-in piece on the electric control panel, and the assembly process is simple.

Description

Technical Field

[0001] The present application relates to the technical field of heating devices, and in particular to a heater, an air conditioner and a vehicle. Background Art

[0002] A heater is usually provided in the air conditioning system of a vehicle for auxiliary heating. In the related art, the assembly process of the heater is complicated. Utility Model Content

[0003] The present application provides a heater, an air conditioner and a vehicle that are beneficial to improving safety performance.

[0004] In a first aspect, an embodiment of the present application provides a heater, which includes a heating component, an electric control board and a shell, wherein the electric control board is accommodated in the shell and is provided with a first plug; the electrodes of the heating component are connected to plug terminals, which extend into the shell and are plugged into the first plug, and the electric control board is used to control the output power of the heating component.

[0005] According to the first aspect, in a possible implementation, the heating component includes a mounting frame and a heating core, a mounting cavity is formed in the mounting frame, the heating core is arranged in the mounting cavity, the heating core has a plurality of electrodes, and each of the electrodes is connected to the plug terminal.

[0006] According to the first aspect, in a possible implementation, the installation frame is provided with a plug-in portion, a plurality of limiting grooves are provided on the plug-in portion, the plug-in terminals are arranged in the limiting grooves in a one-to-one correspondence, and the plug-in portion extends into the shell.

[0007] According to the first aspect, in a possible implementation, the plug-in portion includes multiple pairs of side panels arranged in pairs, and the limiting groove is formed between the two side panels of the same pair; the ends of the two side panels of the same pair are bent toward each other to form a plug-in interface connected to the limiting groove, and the plug-in interface is used for the first plug-in piece to be inserted.

[0008] According to the first aspect, in a possible implementation, a guide section is formed at one end of the plug interface away from the plug terminal, a groove width of the guide section is gradually expanded in a direction away from the plug terminal, and the guide section is used to guide the first plug to be inserted into the plug interface.

[0009] According to the first aspect, in a possible implementation manner, a snap-in protrusion is provided on the installation frame, a card interface is provided on the shell, and the snap-in protrusion is snap-fitted with the card interface.

[0010] According to the first aspect, in a possible implementation manner, the heating core includes heat dissipation bars and heating units alternately arranged along a first direction, and the heat dissipation bars are in thermal contact with adjacent heating units.

[0011] According to the first aspect, in a possible implementation, the electrode includes a first electrode provided on the heating unit and a second electrode provided on the heat dissipation strip, and ends of the first electrode and the second electrode are both connected to the plug-in terminal.

[0012] According to the first aspect, in a possible implementation, the heating unit includes a conductive shell, an insulating thermally conductive sheet, the first electrode and a heating sheet, the conductive shell has a hollow portion, the insulating thermally conductive sheet, the first electrode and the heating sheet are sequentially stacked in the hollow portion along a first direction, and the first direction is perpendicular to an extension direction of the conductive shell.

[0013] According to the first aspect, in a possible implementation, the heating unit also includes an insulating frame, the insulating frame includes two insulating arms, the two insulating arms are arranged on both sides of the first electrode along the second direction, and along the second direction, the two insulating arms are both arranged between the first electrode and the conductive shell; the first direction, the second direction and the extension direction of the conductive shell are perpendicular to each other.

[0014] According to the first aspect, in a possible implementation, at least one of the two side edges of the conductive shell sleeve opposite to each other along the second direction is provided with a bending structure concave toward the hollow portion; when the conductive shell sleeve is subjected to pressure in the first direction, the bending structure can be deformed to press against the corresponding insulating arm along the second direction, and make the two sides of the conductive shell sleeve along the first direction close to each other to compress the insulating thermal conductive plate, the first electrode and the heating plate.

[0015] According to the first aspect, in a possible implementation, the installation frame includes a first frame body and a second frame body, the first frame body is formed with an installation groove, and the second frame body is arranged at a notch of the installation groove to form the installation cavity between the first frame body and the second frame body.

[0016] According to the first aspect, in a possible implementation manner, the inner wall of the installation groove is provided with a limiting rib, and the limiting rib is used to press against the heating core along the first direction.

[0017] According to the first aspect, in a possible implementation manner, a heat sink is further provided in the housing, a high-side driver is provided on the electric control board, and the heat sink is in contact with a side of the electric control board facing away from the high-side driver.

[0018] According to the first aspect, in a possible implementation, the electric control board is further provided with a second plug-in piece, and the housing protrudes at a position corresponding to the second plug-in piece to form a connector.

[0019] According to the first aspect, in a possible implementation, the shell includes a base and a cover plate, an electric control cavity with an opening on one side is formed in the base, the cover plate is arranged at the opening, a through hole connected to the electric control cavity is formed on one side of the base, the electric control board is accommodated in the electric control cavity, and the plug-in terminal extends into the electric control cavity from the through hole.

[0020] According to the first aspect, in a possible implementation manner, the shell is filled with waterproof glue, and the waterproof glue covers the electrical components on the electric control board.

[0021] In a second aspect, an embodiment of the present application further provides an air conditioner, comprising the heater according to the first aspect.

[0022] In a third aspect, an embodiment of the present application further provides a vehicle, comprising the air conditioner according to the second aspect.

[0023] In the heater, air conditioner and vehicle provided in the present application, the plug-in terminal connected to the heating component extends into the shell and is plugged into the first plug-in piece arranged on the electric control board, which simplifies the assembly process and reduces the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments are briefly introduced below.

[0025] Figure 1 Schematic diagram of a heater provided in one embodiment of the present application.

[0026] Figure 2 yes Figure 1 A perspective exploded schematic diagram of the heater shown.

[0027] Figure 3 It is a schematic diagram of an electric control board of a heater provided in one embodiment of the present application.

[0028] Figure 4 It is a schematic diagram of the connection between the electric control board and the heating component of the heater provided in one embodiment of the present application.

[0029] Figure 5 It is a three-dimensional exploded schematic diagram of a heating component of a heater provided in one embodiment of the present application.

[0030] Figure 6 It is a schematic diagram of a heating core of a heater provided in one embodiment of the present application.

[0031] Figure 7 It is a schematic diagram of a mounting frame of a heater provided in one embodiment of the present application.

[0032] Figure 8 yes Figure 7 An enlarged schematic diagram of a local area A.

[0033] Fig. 9 It is a three-dimensional exploded schematic diagram of a heating core of a heater provided in one embodiment of the present application.

[0034] Fig.10 yes Fig. 9 The schematic diagram of the three-dimensional explosion of the heating unit in the heating core of the heater shown.

[0035] Fig.11 yes Fig. 9 The cross-sectional schematic diagram of the heating unit in the heating core of the heater shown.

[0036] Fig.12 It is a three-dimensional exploded schematic diagram of a housing and an electric control board of a heater provided in one embodiment of the present application.

[0037] Fig.13 It is a schematic diagram of the connection structure of the heating component, shell and electronic control mainboard of the heater provided in one embodiment of the present application.

[0038] Fig.14 It is a schematic diagram of the connection structure between the heating component and the electronic control mainboard of the heater provided in one embodiment of the present application.

[0039] Fig.15 It is a cross-sectional schematic diagram of the connection structure between the heating component of the heater and the electronic control mainboard provided in one embodiment of the present application.

[0040] Fig.16 yes Figure 1 An exploded perspective view of the heater and vehicle connector is shown.

[0041] Reference numerals:

[0042] 100-heater; 1-heating assembly; 20-installation frame; 21-first frame; 211-installation slot; 22-second frame; 231-air outlet; 232-limiting rib; 24-plug-in portion; 241-limiting slot; 242-side plate; 243-plug-in interface; 245-guide section; 25-clamping protrusion; 30-heating core; 311-electrode; 313-plug-in terminal; 32-heat dissipation strip; 33-heating monomer; 331-first electrode; 332-conductive shell; 3321-hollow portion; 33 22-bending structure; 333-insulating heat-conducting sheet; 334-heating sheet; 335-insulating frame; 3351-insulating arm; 34-second electrode; 5-electric control board; 51-first plug-in sheet; 52-high-side driver; 53-second plug-in sheet; 55-communication connector; 6-housing; 61-base; 611-electric control cavity; 613-through hole; 615-locating pin; 62-cover; 63-connecting plate; 631-card interface; 64-connector; 71-heat sink; 72-insulating heat-conducting layer; 201-connector. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0044] The following descriptions of the various embodiments are made with reference to the attached drawings to illustrate specific embodiments that may be implemented in the present application. Directional terms mentioned herein, such as "upper", "lower", "front", "back", "left", "right", "inner", "outer", "side", etc., are only with reference to the directions of the attached drawings. Therefore, the directional terms used are intended to better and more clearly describe and understand the present application, rather than to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0045] In addition, the serial numbers of the components in this document, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings).

[0046] The present application provides a vehicle, including an air conditioner. The air conditioner is used to achieve vehicle heating, defrosting or battery heating functions.

[0047] The present application provides an air conditioner, including a heater, which can deliver air heated by the heater to various locations in the vehicle to achieve vehicle heating, defrosting or battery heating functions. The air conditioner may include a blower, an internal circulation duct, an external circulation duct, an outlet duct and other necessary or non-essential structures. The air inside the vehicle drawn by the internal circulation duct or the air outside the vehicle drawn by the external circulation duct is heated by the heater and then blown to various locations in the vehicle through the outlet duct under the action of the blower; this application will not elaborate on this.

[0048] See also Figure 1 and Figure 2 The present application provides a heater 100, which includes a heating component 1, an electric control board 5 and a shell 6; the heating component 1 includes a mounting frame 20 and a heating core 30 arranged in the mounting frame 20, and the mounting frame 20 and the shell 6 are connected together to form a whole; a plug-in terminal 313 is connected to the electrode 311 of the heating core 30, and the plug-in terminal 313 can be a standard part, and the plug-in terminal 313 is fixed to the end of the electrode 311 by riveting, welding, etc. The electric control board 5 is provided with a first plug 51, and the electric control board 5 is arranged in the housing 6. The plug-in terminal 313 extends into the housing 6 and is plugged and connected with the first plug-in terminal 51, thereby connecting the heating core 30 and the control board to form an integrated module. Compared with the related art, in which the plug-in terminal and the housing are formed by injection molding, the plug-in terminal of the heating core needs to cooperate with the plug-in terminal, and the plug-in terminal and the electric control board need to be welded and assembled again after the electric control board is assembled to the housing, the assembly process of the present application is simple, which can effectively reduce the production cost, and the electric control board 5 directly controls the operation of the heating core 30, improving the safety performance. The electric control board 5 can be connected to the vehicle power supply and the vehicle control bus, so as to supply power to the heating core 30 and control the output power of the heater 100 according to different needs.

[0049] Among them, the control circuit and corresponding electrical components can be integrated on the electric control board 5 to realize functions such as overcurrent protection, undervoltage protection, overvoltage protection, and overtemperature protection. For example, a high-side driver 52 can be set on the electric control board 5, and the high-side driver 52 is used to drive the load (heating core 30) of the heater 100. The high-side driver 52 can realize active current limitation combined with thermal shutdown and automatic restart functions to protect the heater 100 and prevent overload. The control circuit and electrical components on the electric control board 5 can be selected and set according to the corresponding functions, and this application will not elaborate on them.

[0050] See also Figure 3 and Figure 4One side of the electric control board 5 is the mounting surface, on which the first plug 51, the high side driver 52 and the second plug 53 are arranged. The second plug 53 is used to connect with the vehicle power supply so that the vehicle power supply supplies power to the electric control board 5; the first plug 51 is used to plug the terminal 313 to achieve the power supply and control of the heating core 30; the high side driver 52 is arranged in series on the line connecting the power supply and the first plug 51, which is used to achieve the overload protection of the heater 100. The circuit layer of the electric control board 5 is exposed on the side of the electric control board 5 away from the mounting surface to form a heat dissipation surface. During the operation of the heater 100, the current flowing on the circuit layer will generate some heat. The circuit layer of the electric control board 5 is exposed to copper, so that the heat is dissipated outward through the heat dissipation surface to avoid heat accumulation and ensure the service life of the electrical components on the electric control board 5. A communication connector 55 is connected to the electric control board, and the communication connector 55 is used to connect with the vehicle control bus to access the vehicle control bus.

[0051] See also Figures 5 to 7 The heating assembly 1 includes a mounting frame 20 and a heating core 30. The heating core 30 is formed into a whole by bonding heat dissipation bars 32 and heating monomers 33 in sequence along the first direction X. Each heating monomer 33 has a first electrode 331. At least one heat dissipation bar 32 is provided with a second electrode 34. The first electrode 331 and the second electrode 34 respectively form the positive electrode and the negative electrode of the heating core 30. The first electrode 331 and the second electrode 34 are both connected with plug-in terminals 313. The heat dissipation bar 32 and the heating monomer 33 are in contact with each other to conduct the circuit, so that the heating monomer 33 generates heat. A high-side driver 52 can be correspondingly provided for each heating monomer 33. The heating monomer 33 contacts the heat dissipation bar 32 for heat conduction. The heat dissipation bar 32 contacts the air to increase the heat exchange area and improve the air heating efficiency. The mounting frame 20 includes a first frame body 21 and a second frame body 22. A mounting groove 211 is formed on the first frame body 21. The second frame body 22 is arranged at the notch of the mounting groove 211, so that a mounting cavity is formed between the first frame body 21 and the second frame body 22. The heating core 30 is arranged in the mounting cavity. The mounting frame 20 can provide an installation position for the heating core 30 and play a protective role. Before the plug-in terminal 313 and the first plug-in piece 51 are plugged into each other, the heating core 30 is first fixed in the mounting frame 20 to prevent the heating core 30 from being deformed or disintegrated due to force, and to ensure that the heat dissipation strip 32 and the heating unit 33 are stably connected, thereby ensuring the stability of the heating unit 33 during operation and heating.

[0052] The first frame 21 and the second frame 22 can be connected by snap fastening, and the first frame 21 and the second frame 22 are provided with air outlets 231. It can be understood that the middle parts of the heat dissipation strip 32 and the heating unit 33 are directly opposite to the air outlet 231, and the two ends of the heat dissipation strip 32 and the heating unit 33 are limited and fixed by the first frame 21 and the second frame 22. As the air flows, the air passes through the air outlet 231 and exchanges heat with the heat dissipation strip 32.

[0053] The inner wall of the installation cavity is provided with a limiting rib 232. Specifically, the inner wall of the first frame 21 corresponding to the installation groove 211 is provided with a limiting rib 232. The limiting rib 232 is a structure protruding along the first direction X. The limiting rib 232 can press against the heating core 30 along the first direction X, that is, the limiting rib 232 applies a clamping force along the first direction X to the heat dissipation bar 32 and the heating monomer 33. The clamping direction is consistent with the arrangement direction of the heat dissipation bar 32 and the heating monomer 33, which can make the heating monomer 33 adjacent to the heat dissipation bar 32 fit closely, thereby improving the heat conduction effect between the heat dissipation bar 32 and the heating monomer 33, and maintaining the circuit conduction between the heat dissipation bar 32 and the heating monomer 33.

[0054] It can be understood that there can be multiple limiting ribs 232, and the multiple limiting ribs 232 are arranged at intervals along the extension direction of the heat dissipation strip 32 and the heating unit 33, and the multiple limiting ribs 232 provide multiple pressing points for the heat dissipation strip 32 and the heating unit 33. The limiting ribs 232 can be located on the inner wall of one side of the first frame 21 along the first direction X or on the inner walls of the two opposite sides along the first direction X. The present application does not limit the position and number of the limiting ribs 232.

[0055] The installation frame 20 is provided with a plug-in portion 24, and a limiting groove 241 is provided on the plug-in portion 24. The limiting groove 241 on the plug-in portion 24 is connected with the installation groove 211, that is, the plug-in portion 24 is formed at one end of the first frame 21, and after the plug-in terminal 313 is fixedly connected with the electrode on the heating core 30, the heating core 30 is installed in the installation groove 211, and the plug-in terminal 313 is installed in the limiting groove 241. The plug-in terminal 313 is limited by the limiting groove 241 on the plug-in portion 24, so as to ensure the consistency of the position of the plug-in terminal 313 after the plug-in portion 24 is extended into the housing 6, so as to facilitate the plugging of the first plug 51 and the plug-in terminal 313.

[0056] Each limiting groove 241 includes two side plates 242 arranged opposite to each other. Figure 8 As shown, two side plates 242 surrounding a limiting groove 241 are defined as a pair of side plates 242, and the plug-in portion 24 has multiple pairs of side plates 242, and the ends of the two side plates 242 of the same pair are bent toward each other to form a plug-in port 243 connected to the limiting groove 241, that is, the limiting groove 241 is through along the second direction Z, and the limiting groove 241 forms a plug-in port 243 along the first direction X. As the plug-in portion 24 is inserted into the housing 6, the first plug 51 is inserted into the corresponding plug-in terminal 313 from the plug-in port 243. Two adjacent pairs of side plates 242 are connected by reinforcing ribs to improve the overall strength of the plug-in portion 24.

[0057] Based on the above embodiment, a guide section 245 is formed at one end of the plug-in port 243 away from the plug-in terminal 313, and the groove width of the guide section 245 is gradually expanded in the direction away from the plug-in terminal 313, that is, the opening of one end of the plug-in port 243 along the third direction X is larger, which can guide the first plug-in piece 51 to be inserted into the plug-in port 243. Since the position of the first plug-in piece 51 is fixed, the position of the installation frame 20 and the heating core of the installation frame 20 is automatically adjusted as the plug-in portion 24 is inserted.

[0058] Two snap-fit ​​protrusions 25 can also be provided on the installation frame 20. The two snap-fit ​​protrusions 25 are provided on opposite sides of the plug-in portion 24. When the first plug-in piece 51 and the plug-in terminal 313 are inserted into place, the two snap-fit ​​protrusions 25 also complete the snap-fit ​​cooperation with the housing 6. That is, in the present application, one action simultaneously realizes the assembly of the heating component 1 and the housing 6, and the plug-in of the first plug-in piece 51 and the plug-in terminal 313, which can simplify the assembly process and reduce costs. In addition, the snap-fit ​​connection method can limit the relative position of the housing 6 and the installation frame 20, so that the mutual positioning of the housing 6 and the installation frame 20, and the mutual positioning of the plug-in terminal 313 and the first plug-in piece 51 are mutually limited, thereby improving the connection stability and accuracy of the plug-in terminal 313 and the first plug-in piece 51.

[0059] It is understandable that there may be more than one clamping protrusion 25, and the plurality of clamping protrusions 25 are arranged at intervals along the outer periphery of the plug-in portion 24. In other embodiments, the mounting frame 20 and the housing 6 may also be fixed by bolt fastening, latch locking, bonding, or the like.

[0060] See also Fig. 9The heating core 30 includes heat dissipation bars 32 and heating units 33 alternately arranged along the first direction X, the heating units 33 have first electrodes 331, and at least one heat dissipation bar 32 has a second electrode 34. The heat dissipation bar 32 having the second electrode 34 is defined as a heat dissipation bar with an electrode; in one embodiment, the heating core 30 includes three heating units 33, each of which has a first electrode 331, a heat dissipation bar with an electrode is arranged between two adjacent heating units 33, and heat dissipation bars 32 are arranged on the outer sides of the two heating units 33 located at the edge, so that the heat dissipation bars 32, the heating units 33 and the heat dissipation bars with electrodes are alternately arranged along the first direction X to form the heating core 30. The first electrode 331 of the heating unit 33 can be a positive electrode or a negative electrode, and the second electrode 34 on the electrode heat sink has a different polarity from the first electrode 331; that is, when the first electrode 331 is a positive electrode, the second electrode 34 is a negative electrode, and the first electrode 331 and the second electrode 34 are connected to the electric control board 5 by cooperating with the first plug 51 through the plug-in terminal 313, and the two (between the heating unit 33 and the heat sink 32, or between the heating unit 33 and the electrode heat sink) are adhered by high-temperature silicone adhesive, so that the heating unit 33 and the second electrode 34 are connected to form a loop to generate heat, and the heat exchange surface with the air is increased under the action of the heat sink 32 and the electrode heat sink. The above arrangement scheme in this application can meet the 1000W power requirement. It can be understood that this application does not limit the number of heating units 33 in the heating core 30, and can be set according to the actual heating power requirement.

[0061] See also Fig.10 and Fig.11 The heating unit 33 includes a first electrode 331, a conductive shell 332, an insulating heat-conducting sheet 333, a heating sheet 334 and an insulating frame 335. The conductive shell 332 has a hollow portion 3321. The insulating heat-conducting sheet 333, the first electrode 331 and the heating sheet 334 are sequentially stacked in the hollow portion 3321 along the first direction X. The insulating frame 335 includes two insulating arms 3351. The two insulating arms 3351 are arranged between the conductive shell 332 and the two sides of the first electrode 331 along the second direction Y. The first electrode 331 serves as the positive electrode of the heating unit 33, the conductive shell 332 serves as the negative electrode of the heating unit 33, the insulating heat conductive sheet 333 and the heating sheet 334 are located on both sides of the first electrode 331 along the first direction X, the insulating heat conductive sheet 333 is arranged between the first electrode 331 and the conductive shell 332 to prevent the first electrode 331 and the conductive shell 332 from being short-circuited, and the two ends of the heating sheet 334 are connected to the first electrode 331 and the conductive shell 332 to make the heating sheet 334 energized and heated. The two insulating arms 3351 of the insulating frame 335 are located on both sides of the first electrode 331 along the second direction Y to prevent the first electrode 331 and the conductive shell 332 from being short-circuited along the second direction Y.

[0062] The insulating thermally conductive sheet 333 , the first electrode 331 , the heating sheet 334 and the conductive shell 332 should be closely attached along the first direction X, so that the insulating thermally conductive sheet 333 can transfer the heat of the heating sheet 334 to the conductive shell 332 and maintain the stability of the heating sheet 334 when it is powered on. The thickness of the insulating frame 335 along the first direction X should be less than the sum of the thicknesses of the insulating thermally conductive sheet 333, the first electrode 331 and the heating sheet 334 along the first direction X, so as to avoid gaps between the insulating thermally conductive sheet 333, the first electrode 331 and the heating sheet 334 or separation of the heating sheet 334 from the conductive shell 332; the thickness of the insulating frame 335 along the first direction X should also be greater than the sum of the thicknesses of the insulating thermally conductive sheet 333 and the first electrode 331 along the first direction X, and the sum of the thicknesses of the first electrode 331 and the heating sheet 334 along the first direction X; so as to ensure that when the two insulating arms 3351 of the insulating frame 335 are in contact with the conductive shell 332, a portion of them still exceeds the first electrode 331, so that the two insulating arms 3351 can limit the heating sheet 334 and the insulating thermally conductive sheet 333, and avoid the heating sheet 334 and the insulating thermally conductive sheet 333 from being displaced from the first electrode 331 along the second direction Y. Of course, the insulating frame 335 can also be formed on the first electrode 331 by the overmolding process. In this case, the insulating frame 335 and the first electrode 331 form a whole and cannot move relative to each other. It is only necessary to ensure that both sides of the insulating frame 335 along the first direction extend out of the first electrode 331.

[0063] At least one of the two side edges of the conductive shell 332 that are opposite to each other along the second direction Y is provided with a bending structure 3322 that is concave toward the hollow portion 3321; after the insulating thermally conductive sheet 333, the first electrode 331, the heating sheet 334, and the insulating frame 335 are assembled into the conductive shell 332, a press is used to apply pressure along the first direction X to the conductive shell 332, and irreversible deformation occurs at the bending structure 3322, so that the bending structure 3322 is pressed against the corresponding insulating arm 3351 along the second direction Y, and the two sides of the conductive shell 332 along the first direction X are brought close to each other to compress the insulating thermally conductive sheet 333, the first electrode 331, and the heating sheet 334, so that the insulating thermally conductive sheet 333, the first electrode 331, and the heating sheet 334 are closely fitted, and the positions of the insulating thermally conductive sheet 333, the first electrode 331, the heating sheet 334, and the insulating frame 335 in the conductive shell 332 are fixed.

[0064] When the conductive shell 332 is a square tube, the conductive shell 332 is provided with bending structures 3322 on both sides along the second direction Y. When a press is used to apply pressure to the conductive shell 332 along the first direction X, the bending structures 3322 on both sides are deformed at the same time, so that the deformed conductive shell 332 is still a parallel plate structure on both sides along the first direction X, which facilitates the connection between the conductive shell 332 and the heat dissipation strip 32 to form the heating core 30.

[0065] The insulating thermally conductive sheet 333 may be made of an insulating ceramic sheet, or other highly thermally conductive insulating materials.

[0066] See also Fig.12 and Fig.13 The housing 6 includes a base 61 and a cover plate 62. The base 61 is formed with an electric control cavity 611 having an opening on one side. The electric control board 5 is first installed in the electric control cavity 611, and then the cover plate 62 is covered on the opening. A through hole 613 is formed on one side of the base 61 to communicate with the electric control cavity 611. The shape of the through hole 613 matches the shape of the plug-in portion 24. The size of the through hole 613 should be slightly larger than the size of the plug-in portion 24, so that the plug-in portion 24 can be easily inserted from the through hole 613; Fig.14 As shown, the gap between the plug-in portion 24 and the edge of the through hole 613 can be matched with the guide section 245 of the plug-in port 243 , and the plug-in portion 24 is inserted from the through hole 613 , and the position of the heating component 1 is finely adjusted under the action of the guide section 245 .

[0067] A connecting plate 63 is provided on the shell 6, and the connecting plate 63 is located at the periphery of the through hole 613. A card interface 631 can be opened on the connecting plate 63. The number of the card interfaces 631 is consistent with the number of the card protrusions 25 and is arranged one by one. The card protrusions 25 are inserted into the corresponding card interfaces 631. The heating component 1 and the shell 6 are fixed together through the cooperation of the card protrusions 25 and the card interfaces 631, which simplifies the assembly process of the heater 100. It is only necessary to extend the plug-in portion 24 of the heating component 1 from the through hole 613 along the third direction Z to simultaneously realize the plug-in of the plug-in terminal 313 and the first plug-in piece 51, and the buckling of the heating component 1 and the shell 6.

[0068] A positioning pin 615 may be provided on the base 61 , and the positioning pin 615 is inserted into a positioning hole on the electric control board 5 to limit the installation position of the electric control board 5 . After the electric control board 5 is limited, it is fixed to the base 61 by fasteners such as bolts.

[0069] See also Fig.12 and Fig.15 A heat sink 71 is also provided in the shell 6, and a high-side driver 52 is provided on the electric control board 5. The heat sink 71 is in heat exchange contact with a side of the electric control board 5 away from the high-side driver 52, and the contact portion is insulated. When a large current flows through the high-side driver 52 on the electric control board 5, a large amount of heat will be generated. The heat is dissipated to the outside of the shell 6 by the heat sink 71 to cool the high-side driver 52, thereby ensuring the service life of the electrical components of the electric control board 5.

[0070] The size of the heat sink 71 can be smaller than that of the electric control board 5 , and the portion of the electric control board 5 corresponding to the heat sink 71 is defined as a heat dissipation area. It is only necessary to ensure that the high-side driver 52 is installed in the heat dissipation area on the electric control board 5 .

[0071] The heat sink 71 is usually made of aluminum ADC12, and the heat sink 71 can be in contact with the housing 6 for heat exchange. The heat sink 71 can also be partially embedded in the housing 6 through an injection molding process, that is, part of the heat sink 71 passes through the housing 6, and part of the heat sink 71 is exposed from the housing 6 to directly radiate heat or convect heat outside the housing 6. The present application does not limit the material of the heat sink 71.

[0072] Since the circuit layer of the electric control board 5 is exposed copper to form a heat dissipation surface, in order to avoid short circuit of the circuit layer and cause failure, an insulating heat conductive layer 72 may be provided between the heat dissipation block 71 and the heat dissipation surface. The insulating heat conductive layer 72 may be made of insulating heat conductive paper or insulating heat conductive adhesive (such as silicone heat conductive adhesive, epoxy resin AB adhesive, acrylic heat conductive adhesive, polyurethane heat conductive adhesive, etc.) to fill the gap between the heat dissipation block 71 and the electric control board 5, thereby insulating and separating the heat dissipation block 71 and the electric control board 5 and increasing the heat exchange area between the heat dissipation block 71 and the electric control board 5, thereby improving the heat exchange efficiency.

[0073] The shell 6 is filled with waterproof glue. The waterproof glue is filled into the shell 6 in a liquid state. As the waterproof glue flows, it can fill the gaps between the electrical components. After that, the waterproof glue solidifies and completely covers the electrical components on the electrical control board 5, playing a role in waterproofing and dustproofing. For example, the heater 100 meets the protection level of IP54.

[0074] See also Fig.12 and Fig.16 The housing 6 protrudes at a position corresponding to the second plug piece 53 to form a connector 64, and the connector 64 is used to adapt to the connector 201 of the vehicle power supply so that the heater is connected to the vehicle power supply to energize and generate heat.

[0075] The above are some implementation methods of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications are also considered to be within the scope of protection of the present application.

Claims

1. A heater, characterized in that: The heater includes a heating component, an electric control board and a shell, wherein the electric control board is accommodated in the shell and is provided with a first plug-in piece; the electrodes of the heating component are connected with plug-in terminals, which extend into the shell and are plug-connected with the first plug-in piece, and the electric control board is used to control the output power of the heating component.

2. The heater according to claim 1, characterized in that The heating component comprises a mounting frame and a heating core. A mounting cavity is formed in the mounting frame. The heating core is arranged in the mounting cavity. The heating core has a plurality of electrodes, and each of the electrodes is connected to the plug-in terminal.

3. The heater according to claim 2, characterized in that The installation frame is provided with a plug-in portion, a plurality of limiting grooves are provided on the plug-in portion, the plug-in terminals are arranged in the limiting grooves in a one-to-one correspondence, and the plug-in portion extends into the shell.

4. The heater according to claim 3, characterized in that The plug-in portion includes a plurality of pairs of side plates arranged in pairs, and the limiting groove is formed between the two side plates in the same pair; the ends of the two side plates in the same pair are bent toward each other to form an insertion interface connected to the limiting groove, and the insertion interface is used for the first plug-in piece to be inserted.

5. The heater according to claim 4, characterized in that A guide section is formed at one end of the plug interface away from the plug terminal. The groove width of the guide section is gradually expanded in a direction away from the plug terminal. The guide section is used to guide the first plug to be inserted into the plug interface.

6. The heater according to claim 3, characterized in that The installation frame is provided with a clamping protrusion, the shell is provided with a clamping interface, and the clamping protrusion is clamped and matched with the clamping interface.

7. The heater according to claim 2, characterized in that The heating core comprises heat dissipation bars and heating units which are alternately arranged along a first direction, and the heat dissipation bars are in thermal contact with adjacent heating units.

8. The heater according to claim 7, characterized in that The electrodes include a first electrode provided on the heating unit and a second electrode provided on the heat dissipation strip, and ends of the first electrode and the second electrode are both connected to the plug-in terminal.

9. The heater according to claim 8, characterized in that The heating unit includes a conductive shell, an insulating thermally conductive sheet, the first electrode and a heating sheet. The conductive shell has a hollow portion. The insulating thermally conductive sheet, the first electrode and the heating sheet are sequentially stacked in the hollow portion along a first direction. The first direction is perpendicular to the extension direction of the conductive shell.

10. The heater according to claim 9, characterized in that The heating unit also includes an insulating frame, which includes two insulating arms. The two insulating arms are arranged on both sides of the first electrode along the second direction, and along the second direction, the two insulating arms are arranged between the first electrode and the conductive shell; the first direction, the second direction and the extension direction of the conductive shell are perpendicular to each other.

11. The heater according to claim 10, characterized in that At least one of the two side edges of the conductive shell sleeve that are opposite to each other along the second direction is provided with a bending structure that is concave toward the hollow portion; when the conductive shell sleeve is subjected to pressure in the first direction, the bending structure can be deformed to press against the corresponding insulating arm along the second direction, and make the two sides of the conductive shell sleeve along the first direction close to each other to compress the insulating thermal conductive sheet, the first electrode and the heating sheet.

12. The heater according to claim 2, characterized in that The installation frame includes a first frame body and a second frame body. The first frame body is formed with an installation groove. The second frame body is arranged at the notch of the installation groove so that the installation cavity is formed between the first frame body and the second frame body.

13. The heater according to claim 12, characterized in that The inner wall of the installation groove is provided with a limiting rib, and the limiting rib is used to press against the heating core along a first direction.

14. The heater according to claim 1, characterized in that A heat sink is also disposed in the housing, a high-side driver is disposed on the electric control board, and the heat sink is in contact with a side of the electric control board that is away from the high-side driver.

15. The heater according to claim 1, characterized in that The electric control board is also provided with a second plug-in piece, and the housing protrudes at a position corresponding to the second plug-in piece to form a connector.

16. The heater according to claim 1, characterized in that The shell includes a base and a cover plate, an electric control cavity with an opening on one side is formed in the base, the cover plate is arranged at the opening, a through hole connected to the electric control cavity is formed on one side of the base, the electric control board is accommodated in the electric control cavity, and the plug-in terminal extends into the electric control cavity from the through hole.

17. The heater according to claim 1, characterized in that The shell is filled with waterproof glue, and the waterproof glue covers the electrical components on the electric control board.

18. An air conditioner, characterized in that: The air conditioner includes the heater according to any one of claims 1 to 17.

19. A vehicle, characterized in that: The vehicle comprises the air conditioner according to claim 18.

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