Heater, air conditioner and vehicle

Abstract

The utility model provides a heater, an air conditioner and a vehicle. Wherein the heater comprises a core body, a heating unit and an electric control piece, the heating unit is contained in the core body, and at least part of the electric control piece is contained in the core body; the electric control piece comprises a heating control part and a confluence part, the heating units are electrically connected with the confluence part, and the heating control part is used for controlling the heating units. Through the structure that the core body simultaneously accommodates the heating unit and the electric control piece, packaging of the heating control part and butt joint of the heating unit and the confluence part can be achieved through one-time assembly of the electric control mainboard and the core body, the overall structure and the assembly process of the heater are simplified, and the production efficiency is improved.

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] The vehicle heater usually uses a PTC liquid heater, which is the most important electric heating source for the vehicle air conditioning and heating system and the battery heating and insulation system. It is also an important component for the vehicle to meet the defrosting regulations and ensure the safety of battery charging and discharging. In the related technology, the production process of the vehicle PTC liquid electric heater is complicated and has a high risk of defects. 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 core, a heating unit and an electrical control unit, wherein the heating unit is accommodated in the core, the electrical control unit is accommodated in the core, the electrical control unit includes a heating control part and a confluence part, the heating unit is electrically connected to the confluence part, and the heating control part is used to control the heating unit.

[0005] According to the first aspect, in a possible implementation manner, the electrical control unit includes an electrical control mainboard, and the heating control part and the confluence part are integrated on the electrical control mainboard.

[0006] According to the first aspect, in a possible implementation manner, a plug-in hole is provided on the converging portion, and the electrode plug-in piece of the heating unit is plugged into the plug-in hole.

[0007] According to the first aspect, in a possible implementation, the core body includes a base plate and a side panel connected to the outer edge of the base plate, the base plate is provided with a mounting groove, and the end of the side panel away from the base plate forms an opening; the electrical control unit is arranged at the opening, and the heating unit is arranged in the mounting groove.

[0008] According to the first aspect, in a possible implementation, part of the bottom plate and the side panels form an electric control cabin; a plurality of electrical components are protruding from the heating control portion, and the plurality of electrical components extend into the electric control cabin.

[0009] According to the first aspect, in a possible implementation, the base plate includes a first plate body, a second plate body, and a partition connecting the first plate body and the second plate body, the distance between the first plate body and the opening is greater than the distance between the second plate body and the opening, the first plate body, the partition, and the side panel corresponding to the first plate body form the electrical control cabin, and the second plate body is provided with the installation groove.

[0010] According to the first aspect, in a possible implementation manner, the second plate body is provided with a heat-conducting protrusion, the heat-conducting protrusion is protruded in a direction away from the opening, and the mounting groove is provided in the heat-conducting protrusion.

[0011] According to the first aspect, in a possible implementation, the plurality of electrical components include power devices, and the heater further includes an insulating heat conductive sheet, two sides of the insulating heat conductive sheet are in contact with the power devices and an inner wall of the electric control cabin for heat exchange.

[0012] According to the first aspect, in a possible implementation manner, a heat sink is provided on the outer side surface of the electric control cabin corresponding to the installation position of the insulating heat conductive sheet.

[0013] According to the first aspect, in a possible implementation, the heater also includes a pressure beam connected to the inner wall of the electrical control cabin; the pressure beam is provided with a pressing protrusion, and the pressing protrusion presses against the side of the power device away from the insulating thermal conductive plate to press the power device tightly against the insulating thermal conductive plate.

[0014] According to the first aspect, in a possible implementation manner, an inner wall of the electric control cabin is provided with a mounting portion, and at least a portion of an edge of the insulating heat conductive sheet is embedded in the mounting portion.

[0015] According to the first aspect, in a possible implementation, an inner wall of the electric control cabin is provided with a mounting portion, and the mounting portion is provided with a slot; the end of the pressure beam is inserted into the slot and pressed against the inner wall of the slot.

[0016] According to the first aspect, in a possible implementation, the heater also includes an upper cover plate, which is covered on the opening; and / or an operating port connected to the electrical control cabin is also opened on the first plate body, and the heater also includes a lower cover plate, which is covered on the operating port.

[0017] According to the first aspect, in a possible implementation, the heater further includes a fixing seat connected to the core body; a limiting groove is provided on the fixing seat, and a portion of the electrical control component is disposed in the limiting groove.

[0018] According to the first aspect, in a possible implementation, a limit baffle is provided on the inner wall of the side panel, and the limit baffle is located at the connection between the partition and the second plate body, and the limit baffle and the part of the side panel corresponding to the second plate body form a limit space; the fixed seat is provided with an avoidance hole at the position corresponding to the plug-in hole, and the fixed seat is limitedly installed in the limit space.

[0019] According to the first aspect, in a possible implementation, the heater includes a base, on which is provided a water tank and a water inlet and a water outlet connected to the water tank; the part of the core on which the heating unit is installed extends into the water tank, and the core is sealed and connected to the edge of the water tank.

[0020] According to the first aspect, in a possible implementation, the heater further includes a temperature sensor electrically connected to the electrical control component, the temperature sensor is connected to the fixing seat, and the temperature sensor is used to detect the temperature in the water tank.

[0021] According to the first aspect, in a possible implementation, the temperature sensor is electrically connected to the electrical control unit through a wire; the heater also includes a wiring bracket, the wiring bracket is arranged on a side of the electrical control unit away from the heating unit, a wiring groove is formed on the wiring bracket, and the wire is at least partially arranged in the wiring groove.

[0022] According to the first aspect, in a possible implementation, a positioning pin is provided in the electric control cabin, a positioning hole is provided on the electric control unit, and the positioning pin is inserted into the positioning hole; and / or, a guide rib is provided in the electric control cabin, a guide groove is provided on the electric control unit, and the guide rib is inserted into the guide groove.

[0023] According to the first aspect, in a possible implementation, there are multiple installation slots, each of which is correspondingly provided with a heating unit; and the multiple installation slots are arranged in an array on the base plate.

[0024] According to the first aspect, in a possible implementation, the heating unit includes a fixed bracket, a heating sheet, a first electrode sheet and a second electrode sheet, the fixed bracket is provided with a through receiving groove, the heating sheet is arranged in the receiving groove and both sides of the heating sheet are exposed from the receiving groove; the first electrode sheet and the second electrode sheet are respectively connected to the two sides of the heating sheet exposed.

[0025] According to the first aspect, in a possible implementation manner, a conductive connection layer is disposed between the first electrode sheet, the second electrode sheet, and the heating sheet.

[0026] According to the first aspect, in a possible implementation manner, the heater further includes a connector, a portion of which extends into the core and is electrically connected to the electrical control component.

[0027] In a second aspect, an embodiment of the present application further provides an air conditioner, comprising a circulation loop and the heater described in the first aspect, wherein the heater is used for heat exchange with a heat exchange medium filled in the circulation loop.

[0028] In a third aspect, an embodiment of the present application further provides a vehicle, the vehicle comprising the air conditioner described in the second aspect.

[0029] The heater, air conditioner and vehicle provided in the present application have a core body of the heater that can accommodate a heating unit and an electrical control unit at the same time, so that the electrical control unit and the core body can be assembled once to achieve the packaging of the heating control part and the docking of the heating unit and the confluence part, thereby simplifying the overall structure and assembly process of the heater, improving production efficiency and reducing the risk of defects. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] 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.

[0031] Figure 1 It is a schematic diagram of a heater provided in one embodiment of the present application.

[0032] Figure 2 yes Figure 1 A perspective exploded schematic diagram of the heater shown.

[0033] Figure 3 It is a schematic diagram of the electrical control component provided in the first embodiment of the present application.

[0034] Figure 4 It is a schematic block diagram of the unit division of the electrical control component provided in the first embodiment of the present application.

[0035] Figure 5 It is a three-dimensional assembly schematic diagram of a core and a heating unit provided in one embodiment of the present application.

[0036] Figure 6 yes Figure 1 A schematic cross-sectional view of the heater is shown.

[0037] Figure 7 yes Figure 6 Schematic diagram of the enlarged structure of area A in the middle.

[0038] Figure 8 It is a schematic diagram of the assembly of a core body and a lower cover plate of a heater provided in one embodiment.

[0039] Fig. 9 It is a schematic structural diagram of a compression beam provided in one implementation manner.

[0040] Fig.10 It is a schematic diagram of the exploded view of the core, heating unit and electrical control components provided by one embodiment.

[0041] Fig.11 It is a schematic diagram of an exploded view of an electrical control component, a fixing seat, a wiring bracket and a temperature sensor provided in one embodiment.

[0042] Fig.12 It is a three-dimensional assembly diagram of an electrical control component, a fixing seat, a wiring bracket and a temperature sensor provided in an implementation manner.

[0043] Fig.13 It is a three-dimensional exploded schematic diagram of a heating unit provided in one embodiment.

[0044] Description of reference numerals:

[0045] 100-heater; 10-core; 111-electric control cabin; 112-installation slot; 113-opening; 115-operation port; 12-bottom plate; 121-first plate; 122-second plate; 123-partition plate; 124-detection structure; 13-side panel; 14-heat-conducting protrusion; 15-heat sink; 161-card interface; 171-positioning pin; 172-support column; 173-guide rib; 174-limiting baffle; 175-limiting space; 18-installation part; 181-card slot; 20-heating unit; 211-electrode plug; 22-fixing bracket; 221-accommodating slot; 23-heating plate; 24-first electrode plate; 25-second electrode plate; 26-insulating layer; 27-conductive connection layer; 30-electric control unit; 31-heating control part; 32-converging part; 32 1-plug hole; 33-electronic control mainboard; 34-electrical components; 341-power device; 361-positioning hole; 362-guide groove; 41-upper cover; 42-lower cover; 431-clip; 50-temperature sensor; 51-detection end; 53-wire; 60-base; 61-water tank; 62-water inlet; 63-water outlet; 71-low-voltage connector; 72-high-voltage connector; 73 - grounding bolt; 75- waterproof sealing ring; 81- fixing seat; 811- limiting groove; 812- avoidance hole; 813- connecting base; 815- locking buckle; 817- limiting protrusion; 83- wiring bracket; 831- wiring groove; 832- connecting part; 91- insulating heat conductive sheet; 93- pressure beam; 931- pressing protrusion; 932- elastic arm; 933- connecting ear; 934- clamping piece. DETAILED DESCRIPTION

[0046] 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.

[0047] 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.

[0048] 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).

[0049] The present application provides a vehicle, including an air conditioner. The air conditioner is used to achieve vehicle heating, defrosting or battery heating functions.

[0050] The present application provides an air conditioner, including a circulation loop and a heater. The heater exchanges heat with a heat exchange medium flowing in the circulation loop to heat the heat exchange medium in the circulation loop, so that the heat exchange medium generates heat when flowing in the circulation loop to achieve vehicle heating, defrosting or battery heating functions. The specific structure of the circulation loop can adopt the solution in existing vehicles, and the present application will not describe it in detail.

[0051] See also Figure 1 to Figure 2 The heater 100 includes a core 10, a heating unit 20, an electric control unit 30, an upper cover plate 41, a lower cover plate 42, a temperature sensor 50 and a base 60. The base 60 is provided with a water tank 61 and a water inlet 62 and a water outlet 63 connected to the water tank 61. The water tank 61 is filled with a heat exchange medium. An electric control cabin 111 and a mounting slot 112 are formed in the core 10. An opening 113 connecting the electric control cabin 111 and the mounting slot 112 is formed on the top of the core 10. An operation port 115 connected to the electric control cabin 111 is provided on the side of the core 10 opposite to the opening 113. Figure 3As shown, the electric control unit 30 includes a heating control part 31 and a confluence part 32; the electric control unit 30 is arranged at the opening 113, and the heating control part 31 extends into the electric control cabin 111; the upper cover plate 41 sealing cover is arranged at the opening 113, and the lower cover plate 42 sealing cover is arranged at the operation port 115, which meets the standard protection level and protects the electric control unit 30 in the core 10 and the electrical components 34 on the electric control unit 30. The heating unit 20 is arranged in the installation groove 112, and the core 10 forms a heating part corresponding to the part where the heating unit 20 is installed. The heating part extends into the water tank 61 and contacts the edge of the water tank 61 to form a sealing structure. The heating unit 20 is powered on to generate heat, and the heat exchange medium in the water tank 61 is heated by heat conduction through the heating part of the core 10. The heat exchange medium in the water tank 61 is connected to the external circuit through the water inlet 62 and the water outlet 63 to form a cycle. And heat is exchanged with the heat exchange medium flowing in the circulation loop to achieve heating. The electrode plug 211 of the heating unit 20 is plugged into the confluence part 32 of the electric control unit 30. The temperature sensor 50 is electrically connected to the electric control unit 30, and the temperature sensor 50 can detect the temperature of the heat exchange medium in the water tank 61. The heating control part 31 can control the heating power of the heating unit 20 according to the detection result of the temperature sensor 50.

[0052] In the present embodiment, by accommodating the heating unit 20 and the electrical control unit 30 on the core 10 at the same time, the one-time assembly of the electrical control unit 30 and the core 10 realizes the packaging of the heating control part 31 and the docking of the heating unit 20 and the confluence part 32, thereby simplifying the overall structure and assembly process of the heater 100, improving production efficiency and reducing the risk of defects.

[0053] In some embodiments, see Figure 3 and Figure 4 , the electric control unit 30 may include a heating control part 31, a confluence part 32 and an electric control main board 33, and the heating control part 31 and the confluence part 32 are integrated on the electric control main board 33; that is, the heating control part 31 and the confluence part 32 may be circuits and electrical components on the electric control main board 33, and the present application does not limit the position of the confluence part 32 of the heating control part 31 on the electric control main board 33, as long as it has the corresponding function. The electric control main board 33 may also be divided into regions, and the region corresponding to the plug-in heating unit 20 is defined as the reflux part, and the portion etched with the control circuit is defined as the heating control part 31. By integrating the heating control part 31 and the confluence part 32 on one electric control main board 33, the present application can reduce the external flying wire design connecting multiple electric control boards and the plug-in circuit design on the board, compared with the solution of splicing multiple electric control boards, thereby simplifying the circuit and improving the safety performance.

[0054] In the above-mentioned first embodiment, the control circuit is integrated on the electric control main board 33, and a plurality of electrical components 34 are also arranged on the electric control main board 33, and the plurality of electrical components 34 are connected to the control circuit to form the heating control part 31. The converging part 32 is provided with a plug hole 321, and the electrode plug 211 of the heating unit 20 is plugged into the plug hole 321 to connect to the control circuit, so that the heating control part 31 controls the heating power of the heating unit 20. It is also possible to realize safety protection functions such as overcurrent protection, undervoltage protection, overvoltage protection, overtemperature protection, and high-voltage interlocking by arranging corresponding electrical components on the electric control main board 33.

[0055] Specifically, a connection circuit is also etched on the electric control main board 33, and a structure such as an elastic connector, a connecting spring or a conductive protrusion is arranged on the hole wall of the plug hole 321 to access the control circuit. The electrode plug 211 of the heating unit 20 is inserted into the plug hole 321 and is in conductive contact with the elastic connector, the connecting spring or the conductive protrusion, thereby accessing the control circuit. The arrangement of the structure such as the elastic connector, the connecting spring or the conductive protrusion can accommodate a certain size thickness error of the electrode plug 211 of the heating unit 20, thereby improving the reliability of the conductive contact.

[0056] In other embodiments, the heating control part 31 and the confluence part 32 may also be independent of each other and electrically connected by connecting wires, plug-in circuits or terminals, and the heating control part 31 and the confluence part 32 may be installed and fastened by different structures, thereby reducing the precision requirements of the core 10 for installing the heating control part 31 and the confluence part 32.

[0057] The following description will be made by taking the example of integrating the heating control part 31 and the converging part 32 on the electric control main board 33 .

[0058] There are usually multiple heating units 20, and the electrical components 34 of the heating control part 31 include power devices 341, such as IGBT (Insulate-Gate Bipolar Transistor), and the power device 341 can control multiple heating units 20 in groups. For example, the number of heating units 20 is 9, and the 9 heating units 20 are arranged at intervals along the third direction Y. The 9 heating units 20 are divided into three groups, and each group of heating units 20 is provided with an IGBT for group control. Specifically, the heating control part 31 can control the output power of the heating unit 20 through gear control or duty cycle control according to the operating conditions and needs of the vehicle. This solution can meet the performance requirement of 10KW power. It can be understood that according to different performance requirements, the heating unit 20 can be more or less, and the present application does not limit the number of heating elements.

[0059] In some embodiments, the heater 100 may include a connector, a portion of which extends into the core 10 and is electrically connected to the electric control unit 30. The connector may include a low-voltage connector 71 and a high-voltage connector 72, the high-voltage connector 72 and the low-voltage connector 71 are fixedly connected to one side of the core 10, and the low-voltage connector 71 and the high-voltage connector 72 are electrically connected to the heating control part 31 of the electric control unit 30 through a connecting line, and the high-voltage connector 72 and the low-voltage connector 71 are used to connect the vehicle circuit (using Lin / CAN communication) to achieve docking with the high-voltage signal, low-voltage signal and power supply access and output of the vehicle.

[0060] The heating core 10 is provided with a grounding bolt 73, which is used to connect to the ground of the entire vehicle to complete the grounding of the high-voltage product and reduce safety hazards.

[0061] See also Figure 2 , Figures 5 to 8 The core 10 includes a bottom plate 12 and a side panel 13 connected to the edge of the bottom plate 12, and the side panel 13 forms an opening 113 on the side opposite to the bottom plate 12. The core 10 can be divided into two parts, one of which has a mounting groove 112 on the bottom plate 12, and the part extends into the water tank 61, and the heating unit 20 is arranged in the mounting groove 112 and heats the heat exchange medium in the water tank 61 through heat conduction of the part; the other part is located outside the water tank 61 to reduce heat transfer to the other part.

[0062] The bottom plate 12 and the side panels 13 of the other part form an electric control cabin 111, and the electric control main board 33 can be arranged at the opening 113. The electric components on the heating control part 31 can be accommodated in the electric control cabin 111, and the part forming the electric control cabin 111 is located outside the water tank 61, so as to reduce the influence of the heating unit 20 heating on the electric components 34 on the electric control main board 33. In addition, the electric control cabin 111 can play a role in waterproofing and dustproofing the internal heating control part 31.

[0063] The bottom plate 12 includes a first plate body 121, a second plate body 122, and a partition 123 connecting the first plate body 121 and the second plate body 122. The second plate body 122 is provided with a mounting groove 112 for mounting the heating unit 20. The second plate body 122 is covered at the notch of the water tank 61 and is sealed and connected to the edge of the water tank 61. The first plate body 121, the partition 123, and a part of the side panel 13 form an electric control cabin 111. The first plate body 121 and the partition 123 are outside the water tank 61. The distance between the first plate body 121 and the opening 113 is greater than the distance between the second plate body 122 and the opening 113, that is, the first plate body 121 and the second plate body 122 have a height difference along the first direction Z. The heating unit 20 and the electrical components on the heating control part 31 can be located on the same side of the electrical control main board 33, that is, the electrical components on the heating control part 31 and the heating unit 20 are located in the same Z-direction height range, which can effectively control the overall Z-direction size of the heater 100.

[0064] The core 10 in the present application can be an integral die-casting component. For example, the material of the core 10 can be aluminum ADC12. The present application does not limit the manufacturing process and material of the core 10. No other fasteners are required to connect the side panels 13, the first plate 121, the partition 123 and the second plate 122. The base 60 and the second plate 122 are sealed by a waterproof sealing ring 75. A sealing ring installation groove can be provided on the base 60 or the second plate 122 at the periphery of the notch corresponding to the water tank 61. The waterproof sealing ring 75 is provided in the sealing ring installation groove. The core 10 and the seat are connected by fasteners to squeeze the waterproof sealing ring 75 for sealing to prevent leakage of the heat exchange medium in the water tank 61.

[0065] The first plate 121 and the second plate 122 are arranged along the second direction X, and a heat-conducting protrusion 14 is protruded on the second plate 122 along the first direction Z. The mounting groove 112 is arranged in the heat-conducting protrusion 14. Specifically, the mounting groove 112 forms a mounting opening on the bottom plate 12 and extends into the heat-conducting protrusion 14; the heating unit 20 is inserted into the mounting groove 112 from the mounting opening, and the heat-conducting protrusion 14 extends into the water tank 61 to exchange heat with the heat exchange medium. By arranging the bottom plate 12 in sections, a height difference is formed between the first bottom plate 12 and the second bottom plate 12, and the extension length of the heat-conducting protrusion 14 is within the height difference range, so that the overall volume of the product is controlled and the interior space of the vehicle is fully utilized.

[0066] The number of the heating units 20 is usually multiple, the number of the mounting grooves 112 is consistent with the number of the heating units 20, the mounting grooves 112 are arranged at intervals on the second plate 122, and the heating units 20 are arranged in the mounting grooves 112 one by one. Correspondingly, the number of the heat-conducting protrusions 14 is multiple, each heat-conducting protrusion 14 is provided with a mounting groove 112, and there are gaps between the multiple heat-conducting protrusions 14, so that each heating unit 20 is correspondingly installed in the heat-conducting protrusion 14, and the four sides of the heat-conducting protrusion 14 are in heat exchange contact with the heat exchange medium in the water tank 61, thereby increasing the heat exchange area and improving the heating efficiency.

[0067] In other embodiments, the heat-conducting protrusion 14 may also be an integral boss structure with a plurality of mounting grooves 112 therein. The heat-conducting protrusion 14 extends into the water tank 61 and contacts the heat exchange medium in the water tank 61 to realize the heating function of the air conditioner.

[0068] The second plate 122 is provided with a detection structure 124, which extends into the water tank 61, and the detection end 51 of the temperature sensor 50 contacts the detection structure 124. The detection structure 124 has the effect of conducting heat between the temperature sensor 50 and the heat exchange medium in the water tank 61. The heat conduction of the detection structure 124 can avoid opening holes in the core 10, thereby reducing the probability of leakage of the heat exchange medium.

[0069] In other embodiments, the detection end 51 of the temperature sensor 50 may also extend through the core 10 into the water tank 61, so that the temperature sensor 50 can directly contact the heat exchange medium in the water tank 61. In this embodiment, the gap between the temperature sensor 50 and the core 10 may be sealed to reduce the probability of leakage of the heat exchange medium.

[0070] The first plate 121 is provided with an operation port 115, which is arranged opposite to the opening 113. The lower cover plate 42 is covered on the operation port 115 and snap-connected with the edge of the operation port 115. The electric control main board 33 is fixed at the opening 113, and the staff can perform wiring operations in the electric control cabin 111 from the operation port 115. After the wiring in the electric control cabin 111 is completed, the upper cover plate 41, the lower cover plate 42 and the core body 10 are press-fitted and fixed, and the connection between the upper cover plate 41 / lower cover plate 42 and the core body 10 is filled with room temperature vulcanized glue (sealant) to achieve sealing, so as to meet the protection level of IP67 & IP6K9K. The upper cover plate 41 and the lower cover plate 42 can be designed with buckles 431, and the edges of the opening 113 of the core 10 and the edges of the operation port 115 are provided with a buckle interface 161. The upper cover plate 41 is installed at the opening 113 of the core 10 and the lower cover plate 42 is installed at the operation port 115 through the cooperation of the buckle 431 and the buckle interface 161. The upper cover plate 41, the lower cover plate 42 and the core 10 are press-fitted and fixed by interference fit, and pre-fixation can be achieved before filling the sealant, so that the upper cover plate 41 and the lower cover plate 42 are not easy to be separated from the core 10.

[0071] A heat sink 15 is provided on the outer side of the core 10 at a position corresponding to the electric control cabin 111. The heat sink 15 increases the heat dissipation surface area. The heat sink 15 can transfer the heat in the electric control cabin 111 to the outside of the electric control cabin 111 by convection, thereby dissipating the heat in the electric control cabin 111 in time and improving the service life of the electrical components 34 on the heating control part 31.

[0072] It can be understood that the power device 341 will generate heat during the control process, and the electrical component 34 will be damaged if it works at high temperature for a long time. In the present application, an insulating heat conductive sheet 91 and a pressure beam 93 are arranged in the electric control cabin 111. The two sides of the insulating heat conductive sheet 91 are in contact with the power device 341 and the inner wall of the electric control cabin 111 for heat exchange. The core 10 is usually made of die-cast aluminum. The insulating heat conductive sheet 91 can insulate and separate the power device 341 and the core 10, which is suitable for high-voltage environments (350V-850V); and the heat of the power device 341 is radiated outward through the insulating heat conductive sheet 91 and the core 10, so that the power device 341 can cool down quickly and improve its service life. Both ends of the pressure beam 93 are connected to the inner wall of the electric control cabin 111. A pressing protrusion 931 is provided on the pressure beam 93. The pressing protrusion 931 presses against the side of the power device 341 away from the insulating thermal conductive sheet 91, thereby pressing the power device 341 tightly against the insulating thermal conductive sheet 91, improving the fit between the power device 341 and the insulating thermal conductive sheet 91 and increasing the heat exchange contact area.

[0073] In some embodiments, see Figures 5 to 7The insulating heat conductive sheet 91 can be embedded in the partition 123 to reduce the interference with the guide limit structure on the side panel 13. Of course, the insulating heat conductive sheet 91 can also be embedded in other positions, for example, the insulating heat conductive sheet 91 can be set close to the water inlet pipeline of the water tank 61. When the heat exchange medium flows from the water inlet 62 to the water tank 61, it can exchange heat with the insulating heat conductive sheet 91 to take away a lot of heat, and preheat, thereby reducing heating energy consumption.

[0074] Please refer to Fig. 9 , the insulating heat conductive sheet 91 can be installed in a chimeric style to reduce the probability of the insulating heat conductive sheet 91 falling during the production process. An elastic arm 932 is provided on the pressure beam 93, and the elastic arm 932 is at least partially bent to form a pressing protrusion 931. The elastic arm 932 is inclined along the first direction Z toward the direction close to the insulating heat conductive sheet 91, and a space that is gradually set along the first direction Z is formed between the elastic arm 932 and the insulating heat conductive sheet 91. When installing the electronic control mainboard 33, the power device 341 moves with the electronic control mainboard 33, and the power device 341 is inserted into the space along the first direction Z, and pushes the elastic arm 932 to deform; until the electronic control mainboard 33 is in place, at this time, the power device 341 is pressed against the side of the insulating heat conductive sheet 91 under the elastic force of the elastic arm 932, and the power device 341 is installed in place with the electronic control mainboard 33, simplifying the assembly steps.

[0075] The position of the heat sink 15 corresponds to the position of the insulating heat conductive sheet 91, thereby reducing the radiation diffusion of the power device 341 in the electric control cabin 111, and quickly convectively dissipating the heat to the outside through the insulating heat conductive sheet 91, the core 10 and the heat sink 15. It can be understood that a fan facing the heat sink 15 can be provided on the vehicle, and the fan can form an airflow to improve the heat dissipation efficiency of the heat sink 15.

[0076] In order to further improve the heat exchange efficiency, a heat-conducting medium, such as thermal grease, can be filled between the power device 341 and the insulating heat-conducting sheet 91, and between the insulating heat-conducting sheet 91 and the inner wall of the electrical control cabin 111, so that the silicone grease fills the gaps between the power device 341 and the insulating heat-conducting sheet 91, and between the insulating heat-conducting sheet 91 and the inner wall of the electrical control cabin 111, thereby increasing the heat conduction area.

[0077] In one embodiment, the insulating heat-conducting sheet 91 may be made of an alumina ceramic sheet. In other embodiments, the insulating heat-conducting sheet 91 may also be made of a zirconium oxide ceramic, an aluminum nitride ceramic, a silicon nitride ceramic, or the like.

[0078] In order to facilitate the installation of the insulating heat-conducting sheet 91 and the pressure beam 93 , two oppositely arranged mounting portions 18 are provided on the inner wall of the electric control cabin 111 , and the insulating heat-conducting sheet 91 can be installed and fixed by means of engagement or snap connection with the mounting portions 18 .

[0079] Specifically, the edges of both sides of the insulating thermally conductive sheet 91 are embedded in the mounting portion 18, and the insulating thermally conductive sheet 91 is limited in multiple directions. The two ends of the pressure beam 93 are bent to form connecting ears 933, and the connecting ears 933 are provided with a snap-in sheet 934; the two mounting portions 18 have a snap-in slot 181 on the opposite sides, and the snap-in sheet 934 is correspondingly snapped into the snap-in slot 181 and pressed against the inner wall of the snap-in slot 181. The pressure beam 93 and the insulating thermally conductive sheet 91 are both installed based on the mounting portion 18, and the positioning references of the pressure beam 93 and the insulating thermally conductive sheet 91 are consistent, which can improve the position accuracy between the pressure beam 93 and the insulating thermally conductive sheet 91, and reduce the situation where the power device 341 and the insulating thermally conductive sheet 91 are not in close contact due to insufficient pressing force of the pressure beam 93 on the power device 341. It also reduces the possibility of damaging the power device 341 due to excessive pressing force of the pressure beam 93 on the power device 341.

[0080] See also Fig.10 , a positioning pin 171 may be provided in the electric control cabin 111, and a positioning hole 361 is provided on the electric control main board 33. The positioning hole 361 may be circular, and the positioning hole 361 is matched with the positioning pin 171. The positioning pin 171 cooperates with the positioning hole 361 to limit the movement of the electric control main board 33 in the second direction X and the movement in the third direction Y, so as to facilitate the alignment and plugging of the plug interface on the electric control main board 33 and the electrode plug 211 of the heating unit 20. In other embodiments, the positioning hole 361 may also be a waist-shaped hole, and the extending direction of the positioning hole 361 is the second direction X. Then, the positioning pin 171 cooperates with the positioning hole 361 to limit the movement of the electric control main board 33 in the third direction Y only, and over-positioning can be avoided when cooperating with other positioning structures.

[0081] A support column 172 extending along the first direction Z is provided in the electric control cabin 111. The support column 172 is connected to the side wall of the electric control cabin 111. A positioning pin 171 is provided at the end of the support column 172. A step surface is formed at the connection between the support column 172 and the positioning pin 171. The electric control main board 33 can be supported on the step surface, that is, the support column 172 provides an installation position for the positioning pin 171 and supports the electric control main board 33 to avoid excessive suspended parts of the electric control main board 33 to form a cantilever structure, thereby reducing the risk of breakage of the electric control main board 33.

[0082] A guide rib 173 may also be provided in the electric control cabin 111. The guide rib 173 extends along the first direction Z on the side panel 13. A guide groove 362 is provided on the electric control main board 33. The guide rib 173 is inserted into the guide groove 362. The electric control main board 33 can slide along the extension direction of the guide rib 173 until the electrode plug 211 of the heating unit 20 is inserted into the plug hole 321. That is, the guide rib 173 cooperates with the guide groove 362 to pre-position the electric control main board 33, limit the moving direction of the electric control main board 33, reduce the possibility of the electric components 34 on the electric control main board 33 and the structure on the core 10 during the movement of the electric control main board 33, and improve the safety performance of the electric control main board 33. Two guide ribs 173 may be arranged side by side, which can reduce the probability of the electric control main board 33 deflecting around the guide rib 173 as the center. The two guide ribs 173 can play a better guiding role.

[0083] The converging part 32 of the electric control unit 30 is fixed on the fixing seat 81. Specifically, a limiting groove 811 is provided on the fixing seat 81, and the converging part 32 is arranged in the limiting groove 811. The fixing seat 81 plays a role in strengthening the protection of the electric control main board 33. Compared with the direct force on the electric control main board 33, the force acting on the fixing seat 81 is homogenized before acting on the electric control main board 33, thereby reducing the situation where the electric control main board 33 is damaged or cracked due to concentrated force at a certain place.

[0084] The inner wall of the side panel 13 may be provided with a limit baffle 174, which is located at the connection between the partition 123 and the second plate body 122, and the limit baffle 174 and the part of the side panel 13 corresponding to the second plate body 122 form a limit space 175; the fixed seat 81 is provided with an avoidance hole 812 at the position corresponding to the plug hole 321, and the fixed seat 81 is limitedly installed in the limit space 175. The outer contour of the fixed seat 81 is adapted to the shape of the limit space 175, and the confluence part 32 is further positioned to ensure that the electrode plug 211 of the heating unit 20 is aligned with the plug hole 321 before the electrode plug 211 of the heating unit 20 is inserted into the plug hole 321. The fixed seat 81 only needs to be pressed into the limit space 175 along the first direction Z to achieve the corresponding plugging of the electrode plugs 211 of multiple heating units 20 and multiple plug holes 321.

[0085] In summary, the core 10 is provided with a plurality of first guide and limit structures, which may be positioning pins 171, guide ribs 173 or limit baffles 174; the electric control main board 33 is also provided with a plurality of second guide and limit structures, which may be positioning holes 361, guide grooves 362 or fixed seats 81. The plurality of guide and limit structures on the core 10 correspond to and cooperate with the plurality of guide and limit structures on the electric control main board 33, and limit the installation position of the electric control main board 33, and limit the moving path of the electric control main board 33 during the installation process, so as to improve the relative position accuracy of the electric control main board 33 and the core 10, and facilitate the alignment and plugging of the plug interface on the electric control main board 33 and the electrode plug 211 of the heating unit 20. After the electric control main board 33 is installed to the designated position on the core 10 by the guide and limit structure, the electric control main board 33 and the core 10 can be fixed by bolts.

[0086] See also Fig.11 and Fig.12 The fixing seat 81 is provided with a connection base 813 for installing the temperature sensor 50. The temperature sensor 50 is electrically connected to the electric control main board 33 through the wire 53. The temperature sensor 50 collects the temperature signal of the heat exchange medium in the water tank 61. The heating control part 31 can adjust the control mode according to the temperature signal to improve the stability of the product. In this application, the temperature sensor 50 is not directly connected to the electric control main board 33, but passes through the connection base 813 and is interference fit with the connection base 813 to fix the temperature sensor 50 on the fixing seat 81, reducing the reaction force directly formed by the temperature sensor 50 on the electric control main board 33.

[0087] A wiring bracket 83 is also provided on the side of the electric control main board 33 away from the heating unit 20. A wiring groove 831 is formed on the wiring bracket 83, and the wire 53 is at least partially arranged in the wiring groove 831. The wiring groove 831 can constrain the arrangement path of the wire harness and improve the neatness of the internal line. The number of temperature sensors 50 can be two, and the two ends of the wiring groove 831 are arranged close to the temperature sensor 50. The wiring groove 831 on the wiring bracket 83 can play a role in collecting the wires 53 of the temperature sensor 50, and connect each temperature sensor 50 to an end, so as to facilitate the plug-in connection between the temperature sensor 50 and the electric control main board 33. The number of temperature sensors 50 can also be 3 or even more, and it is only necessary to adjust the path of the wiring groove 831 on the wiring bracket 83 to adapt.

[0088] See also Figures 10 to 12The fixing seat 81, the electric control main board 33 and the wiring bracket 83 can be fixed by the buckle 431. Specifically, the outer edge of the wiring bracket 83 is provided with a connecting portion 832, and the fixing seat 81 is provided with a locking buckle 815, which passes through the electric control main board 33 and the connecting portion 832; the outer side of the locking buckle 815 is provided with a limiting protrusion 817, and the connecting portion 832 and the electric control main board 33 are clamped between the limiting protrusion 817 and the fixing seat 81, so as to connect the fixing seat 81, the electric control main board 33 and the wiring bracket 83 together, reduce the probability of the electric control main board 33 being detached and displaced, and improve the reliability of the connection between the electric control main board 33 and the heating unit 20.

[0089] See also Fig.13 The heating unit 20 includes a fixed bracket 22, a heating sheet 23, a first electrode sheet 24 and a second electrode sheet 25. The fixed bracket 22 is provided with a through receiving groove 221. The heating sheet 23 is arranged in the receiving groove 221 and the two sides of the heating sheet 23 are exposed from the receiving groove 221. The first electrode sheet 24 and the second electrode sheet 25 are respectively connected to the two sides of the heating sheet 23. The first electrode sheet 24 and the second electrode sheet 25 are formed with an electrode plug 211 structure. The first electrode sheet 24 and the second electrode sheet 25 are respectively a positive electrode sheet and a negative electrode sheet. The electrode plugs 211 of the first electrode sheet 24 and the second electrode sheet 25 are plugged into the plug hole 321 of the converging part 32, and are connected to the heating control part 31 and the power input. The first electrode sheet 24 and the second electrode sheet 25 supply power to the heating sheet 23 so that the heating sheet 23 is powered on to generate heat. The fixed bracket 22 is used to fix the heating sheet 23, the first electrode sheet 24 and the second electrode sheet 25. The first electrode sheet 24 and the second electrode sheet 25 are covered with an insulating layer 26 at their peripheries, and heat is radiated outwards through the insulating layer 26 outside the first electrode sheet 24 and the second electrode sheet 25 .

[0090] A plurality of accommodating grooves 221 may be arranged at intervals on the fixed bracket 22, and a heating sheet 23 is arranged in each accommodating groove 221. The plurality of heating sheets 23 arranged on the same fixed bracket 22 are electrically connected to the same first electrode sheet 24 and second electrode sheet 25 to realize power supply, thereby satisfying the heating efficiency and improving the integration degree of the heating core 10. In addition, a through hole is provided on the fixed bracket 22, and the electrode plugs 211 of the first electrode sheet 24 and the second electrode sheet 25 pass through the corresponding through holes. The fixed bracket 22 limits the position of the electrode plugs 211, so as to facilitate the subsequent assembly of the heating unit 20 and the converging part 32.

[0091] A conductive connection layer 27 is provided between the first electrode sheet 24 and the heating sheet 23, and between the second electrode sheet 25 and the heating sheet 23, and the first electrode sheet 24 / the second electrode sheet 25 and the heating sheet 23 are electrically connected through the conductive connection layer 27. The problem of poor contact when the first electrode sheet 24 / the second electrode sheet 25 is directly connected to the heating sheet is improved, and the connection method is simple, the installation is firm, safe and reliable, and the service life is extended. The conductive connection layer 27 may include solder, conductive glue, high-temperature sintered conductive paste or other materials.

[0092] 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 core, a heating unit and an electrical control unit, wherein the heating unit is accommodated in the core, the electrical control unit is accommodated in the core, the electrical control unit includes a heating control part and a confluence part, the heating unit is electrically connected to the confluence part, and the heating control part is used to control the heating unit.

2. The heater according to claim 1, characterized in that The electric control unit comprises an electric control main board, and the heating control part and the converging part are integrated on the electric control main board.

3. The heater according to claim 1, characterized in that The confluence part is provided with a plug-in hole, and the electrode plug-in piece of the heating unit is plugged into the plug-in hole.

4. The heater according to claim 3, characterized in that The core body includes a base plate and a side panel connected to the outer edge of the base plate, the base plate is provided with a mounting groove, and one end of the side panel away from the base plate forms an opening; the electrical control unit is arranged at the opening, and the heating unit is arranged in the mounting groove.

5. The heater according to claim 4, characterized in that Part of the bottom plate and the side panels form an electric control cabin; a plurality of electrical components are protruding from the heating control portion, and the plurality of electrical components extend into the electric control cabin.

6. The heater according to claim 5, characterized in that The base plate includes a first plate body, a second plate body and a partition connecting the first plate body and the second plate body. The distance between the first plate body and the opening is greater than the distance between the second plate body and the opening. The first plate body, the partition plate and the part of the side panel corresponding to the first plate body form the electrical control cabin, and the second plate body is provided with the installation groove.

7. The heater according to claim 6, characterized in that The second plate body is provided with a heat-conducting protrusion, the heat-conducting protrusion is protruded in a direction away from the opening, and the mounting groove is arranged in the heat-conducting protrusion.

8. The heater according to claim 6, characterized in that The plurality of electrical components include power devices, and the heater further includes an insulating heat-conducting sheet, two sides of which are in contact with the power devices and an inner wall of the electric control cabin for heat exchange.

9. The heater according to claim 8, characterized in that A heat sink is provided on the outer side of the electric control cabin corresponding to the installation position of the insulating heat conductive sheet.

10. The heater according to claim 8, characterized in that The heater also includes a pressure beam connected to the inner wall of the electric control cabin; the pressure beam is provided with a pressing protrusion, and the pressing protrusion presses against the side of the power device away from the insulating thermal conductive sheet to press the power device tightly against the insulating thermal conductive sheet.

11. The heater according to claim 10, characterized in that The inner wall of the electric control cabin is provided with a mounting portion, and at least a portion of the edge of the insulating heat conductive sheet is embedded in the mounting portion.

12. The heater according to claim 10, characterized in that The inner wall of the electric control cabin is provided with a mounting portion, and the mounting portion is provided with a slot; the end of the pressure beam is inserted into the slot and pressed against the inner wall of the slot.

13. The heater according to claim 6, characterized in that The heater further comprises an upper cover plate, wherein the upper cover plate is arranged to cover the opening; and / or, The first plate body is also provided with an operation port connected with the electric control cabin, and the heater further comprises a lower cover plate, which is covered on the operation port.

14. The heater according to claim 6, characterized in that The heater also includes a fixing seat, which is connected to the core body; a limiting groove is provided on the fixing seat, and part of the electric control component is arranged in the limiting groove.

15. The heater according to claim 14, characterized in that A limit baffle is provided on the inner wall of the side panel, and the limit baffle is located at the connection between the partition and the second plate body. The limit baffle and the part of the side panel corresponding to the second plate body form a limit space; the fixed seat is provided with an avoidance hole at the position corresponding to the plug-in hole, and the fixed seat is limitedly installed in the limit space.

16. The heater according to claim 14, characterized in that The heater comprises a base, on which a water tank and a water inlet and a water outlet connected to the water tank are provided; the part of the core body on which the heating unit is installed extends into the water tank, and the core body is sealed and connected to the edge of the water tank.

17. The heater according to claim 16, characterized in that The heater further comprises a temperature sensor electrically connected to the electric control unit, the temperature sensor is connected to the fixing seat, and the temperature sensor is used to detect the temperature in the water tank.

18. The heater according to claim 17, characterized in that The temperature sensor is electrically connected to the electrical control unit via a wire; the heater further comprises a wiring bracket, the wiring bracket is arranged on a side of the electrical control unit away from the heating unit, a wiring groove is formed on the wiring bracket, and the wire is at least partially arranged in the wiring groove.

19. The heater according to claim 6, characterized in that A positioning pin is provided in the electric control cabin, a positioning hole is provided on the electric control unit, and the positioning pin is inserted into the positioning hole; and / or, A guide rib is arranged in the electric control cabin, a guide groove is opened on the electric control unit, and the guide rib is inserted into the guide groove.

20. The heater according to claim 4, characterized in that There are multiple installation slots, each of which is correspondingly provided with a heating unit, and the multiple installation slots are arranged in an array on the bottom plate.

21. The heater according to claim 1, characterized in that The heating unit includes a fixed bracket, a heating sheet, a first electrode sheet and a second electrode sheet. The fixed bracket is provided with a through receiving groove, the heating sheet is arranged in the receiving groove and both sides of the heating sheet are exposed from the receiving groove; the first electrode sheet and the second electrode sheet are respectively connected to the exposed two sides of the heating sheet.

22. The heater according to claim 21, characterized in that A conductive connection layer is provided between the first electrode sheet, the second electrode sheet and the heating sheet.

23. The heater according to claim 1, characterized in that The heater further comprises a connector, a portion of which extends into the core and is electrically connected to the electrical control unit.

24. An air conditioner, characterized in that: The air conditioner comprises a circulation loop and a heater according to any one of claims 1 to 23, wherein the heater is used for exchanging heat with a heat exchange medium filled in the circulation loop.

25. A vehicle, characterized in that: The vehicle includes the air conditioner as claimed in claim 24.

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