Heater

Abstract

The utility model discloses a heater, which comprises a shell, a confluence plate, a lead-out piece, a power supply plate and a plurality of heating units, the current input end of each heating unit is electrically connected to the first conductive part of the confluence plate; the current output end of each heating unit is electrically connected to the second conductive part of the confluence plate; the leading-out piece comprises an insulating piece, a first electric connecting piece and a second electric connecting piece; the insulating part wraps the first electric connecting part and the second electric connecting part; the two ends of the first electric connecting piece extend out of the insulating piece and are electrically connected with the first conductive part and the first pin of the power supply plate respectively; the two ends of the second electric connecting piece extend out of the insulating piece and are electrically connected with the second conductive part and the second pin of the power supply board respectively. According to the utility model, the first electric connecting piece and the second electric connecting piece which are used for electrically connecting the bus board and the power supply board are coated with the insulating pieces, so that short circuit between the first electric connecting piece and the second electric connecting piece and other parts can be effectively avoided, and the use safety of the heater is improved.

Description

heater Technical Field

[0001] This utility model relates to the field of electric heating technology, and in particular to a heater. Background Technology

[0002] In existing vehicles, the heater used in the air conditioning system consists of a main housing and a heating unit. The heating unit is installed inside the housing and electrically connected to a power supply board. During operation, the power supply board is connected to the power supply board to supply power to the heating unit.

[0003] The housing typically contains multiple heating units, each of which is electrically connected to the power supply board via a busbar.

[0004] In addition, the heating unit is installed in the heating cavity of the housing, and the power supply board is set in the control cavity of the housing. The heating cavity and the control cavity are connected through the mounting hole. The busbar is installed in the heating cavity, and the metal lead on the busbar extends from the mounting hole into the control cavity to electrically connect to the power supply board.

[0005] In this method, the metal leads are prone to short circuits with other components, thereby reducing the safety performance of the heater. Summary of the Invention

[0006] This utility model provides a heater designed to improve the safety performance of the heater during use.

[0007] This utility model embodiment provides a heater, including a busbar, lead-out components, a power supply board, and multiple heating units; the current input terminal of each heating unit is electrically connected to a first conductive portion of the busbar; the current output terminal of each heating unit is electrically connected to a second conductive portion of the busbar; the lead-out component includes an insulating component, a first electrical connector, and a second electrical connector; the insulating component covers the first electrical connector and the second electrical connector; both ends of the first electrical connector extend out of the insulating component and are electrically connected to the first conductive portion and a first pin of the power supply board, respectively; both ends of the second electrical connector extend out of the insulating component and are electrically connected to the second conductive portion and a second pin of the power supply board, respectively.

[0008] Optionally, there are multiple second conductive parts that are electrically isolated from each other; there are multiple second electrical connectors that are electrically isolated from each other; there are multiple second pins that are electrically isolated from each other; the second conductive parts, the second electrical connectors, and the second pins correspond one-to-one; each second conductive part is connected to a different number of current output terminals; the two ends of the second electrical connector are respectively connected to the corresponding second conductive part and the second pin.

[0009] Optionally, the insulating element includes a first insulating block and a second insulating block; wherein the number of the first insulating block is one, and the number of the second insulating blocks is greater than or equal to one; the first insulating block covers the first electrical connector, or the first insulating block covers the first electrical connector and at least one second electrical connector; each second insulating block covers at least one second electrical connector.

[0010] Optionally, the heater further includes a first housing, the first housing having a first receiving cavity, a second receiving cavity, and a mounting hole; the first receiving cavity and the second receiving cavity are spaced apart, and the mounting hole connects the first receiving cavity and the second receiving cavity; the heating unit and the busbar are both disposed in the first receiving cavity; the power supply board is disposed in the second receiving cavity; the lead-out member passes through the mounting hole and extends into the first receiving cavity and the second receiving cavity respectively.

[0011] Optionally, the heater further includes a second housing, which is connected to the first housing to form a heat exchange cavity; an input hole and an output hole are provided on the outer surface of the second housing, and the input hole and the output hole are both connected to the heat exchange cavity; the heating unit is used to heat the heat exchange medium in the heat exchange cavity.

[0012] Optionally, the insulating element is located between the bottom surface of the first receiving cavity and the busbar; the bottom surface of the first receiving cavity is provided with a plurality of mounting grooves, and each mounting groove is provided with at least one of the heating units.

[0013] Optionally, the busbar is a PCB board, and the busbar further includes a substrate, which is an insulating board. The first conductive part and the second conductive part are both disposed on the substrate and electrically isolated from each other. The substrate has a plurality of first positioning structures, each corresponding to a current input terminal. The first positioning structure is used to cooperate with the corresponding current input terminal to define the connection position of the corresponding current input terminal on the busbar. The substrate has a plurality of second positioning structures, each corresponding to a current output terminal. The second positioning structure is used to cooperate with the corresponding current output terminal to define the connection position of the corresponding current output terminal on the busbar. The substrate has a third positioning structure, which is used to cooperate with the first electrical connector to define the connection position of the first electrical connector on the busbar. The substrate has a fourth positioning structure, which is used to cooperate with the corresponding second electrical connector to define the connection position of the second electrical connector on the busbar.

[0014] Optionally, the first positioning structure is a first positioning hole, and the current input terminal passes through the corresponding first positioning hole to be limited by the hole wall of the first positioning hole; the second positioning structure is a second positioning hole, and the current output terminal passes through the corresponding second positioning hole to be limited by the hole wall of the second positioning hole; the third positioning structure is a third positioning hole, and the first electrical connector passes through the third positioning hole to be limited by the hole wall of the third positioning hole; the fourth positioning structure is a fourth positioning hole, and the second electrical connector passes through the fourth positioning hole to be limited by the hole wall of the fourth positioning hole; the first positioning hole penetrates the substrate; the second positioning hole penetrates the substrate; the third positioning hole penetrates the substrate; the fourth positioning hole penetrates the substrate.

[0015] Optionally, the power supply board is provided with a fifth positioning structure, which is used to cooperate with the first electrical connector to limit the connection position of the first electrical connector on the power supply board; the power supply board is provided with a sixth positioning structure, which is used to cooperate with the second electrical connector to limit the connection position of the second electrical connector on the power supply board.

[0016] Optionally, the fifth positioning structure is a fifth positioning hole, and the first electrical connector passes through the fifth positioning hole to limit its movement through the hole wall; the sixth positioning structure is a sixth positioning hole, and the second electrical connector passes through the sixth positioning hole to limit its movement through the hole wall; the fifth positioning hole penetrates the power supply board; the sixth positioning hole penetrates the power supply board.

[0017] In the heater provided in this embodiment of the utility model, the first electrical connector and the second electrical connector used for electrically connecting the busbar and the power supply board are covered with an insulating component, which can effectively prevent them from short-circuiting with other components and improve the safety of the heater.

[0018] In addition, the configuration of this embodiment is equivalent to dividing the busbar component in the prior art into a busbar plate and a lead-out component, which makes it easier to design and process the busbar plate and lead-out component according to the actual scenario. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 is a schematic diagram of the structure of a heater provided in an embodiment of the present invention;

[0021] Figure 2 is a partial structural schematic diagram of a heater provided in an embodiment of the present invention;

[0022] Figure 3 is a partial structural schematic diagram of the heater provided in one embodiment of the present invention;

[0023] Figure 4 is a schematic diagram of the structure of the manifold of the heater provided in an embodiment of the present invention;

[0024] Figure 5 is a schematic diagram of the lead-out component of the heater provided in an embodiment of the present invention;

[0025] Figure 6 is a schematic diagram of the heating unit of a heater provided in an embodiment of the present invention;

[0026] Figure 7 is a schematic diagram of the structure of the heater housing provided in an embodiment of the present invention.

[0027] Instruction manual illustrations and reference numerals:

[0028] 10. Heater;

[0029] 1. Busbar; 11. Substrate; 12. First positioning structure; 13. Second positioning structure; 14. Third positioning structure; 15. Fourth positioning structure;

[0030] 2. Lead-out component; 21. First electrical connector; 22. Second electrical connector; 23. Insulator; 231. First insulating block; 232. Second insulating block;

[0031] 3. Power supply board; 31. Fifth positioning structure; 32. Sixth positioning structure;

[0032] 4. Heating unit; 41. Current input terminal; 42. Current output terminal; 43. Electric heating element; 44. First electrode plate; 45. Second electrode plate; 46. Clamping component; 461. First clamping plate; 462. Second clamping plate; 463. Connecting plate; 47. Insulating pad;

[0033] 5. First housing; 51. First receiving cavity; 52. Second receiving cavity; 53. Mounting hole; 54. Mounting groove; 55. Base; 56. Heating unit;

[0034] 6. Second housing; 61. Input port; 62. Output port;

[0035] 7. Cover plate. Detailed Implementation

[0036] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0037] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] As shown in Figures 1, 2, 3, and 6, in one embodiment, the heater 10 includes a busbar 1, a lead-out member 2, a power supply board 3, and multiple heating units 4; the current input terminal 41 of each heating unit 4 is electrically connected to the first conductive part of the busbar 1; the current output terminal 42 of each heating unit 4 is electrically connected to the second conductive part of the busbar 1; the lead-out member 2 includes a first electrical connector 21, a second electrical connector 22, and an insulating member 23; the insulating member 23 covers the first electrical connector 21 and the second electrical connector 22; both ends of the first electrical connector 21 extend out of the insulating member 23 and are electrically connected to the first conductive part and the first pin of the power supply board 3, respectively; both ends of the second electrical connector 22 are electrically connected to the second conductive part and the second pin of the power supply board 3, respectively.

[0039] In this embodiment, the first electrical connector 21 and the second electrical connector 22 used for electrically connecting the busbar 1 and the power supply board 3 are covered with an insulating component 23, which can effectively prevent them from short-circuiting with other components and improve the safety of the heater 10.

[0040] In addition, the configuration of this embodiment is equivalent to dividing the busbar component in the prior art into a busbar plate 1 and a lead-out component 2, which is more conducive to the corresponding design and processing of the busbar plate 1 and the lead-out component 2 according to the actual scenario.

[0041] Furthermore, the current input terminals 41 of each heating unit 4 are collected through the first conductive part, and the current output terminals 42 of each heating unit 4 are collected through the second conductive part, thereby reducing the use of conductive wires, facilitating the assembly of the heater 10, and thus improving the production efficiency of the heater 10.

[0042] Furthermore, the conductive parts (i.e., the first conductive part and the second conductive part) on the busbar 1 are electrically connected to the corresponding pins (i.e., the first pin and the second pin) on the power supply board 3 through the lead-out part 2, which can increase the flexibility of the setting position of the busbar 1 and the power supply board 3, which is beneficial to the design of the heater 10. At the same time, this can also keep the power supply board 3 away from the busbar 1 and the heating unit 4, reducing the adverse interference of the temperature at the busbar 1 and the heating unit 4 on the power supply board 3.

[0043] During operation, the first and second pins can be electrically connected to the two ends of the power supply, so that the power supply can supply power to each heating unit 4 through the lead-out part 2 and the busbar 1.

[0044] Among them, the current input terminal 41 of the heating unit 4 can be the positive terminal of the heating unit 4, and the current output terminal 42 of the heating unit 4 can be the negative terminal of the heating unit 4.

[0045] "Multiple" means two or more. The meaning of the word "multiple" is the same in all embodiments and will not be repeated hereafter.

[0046] In the actual product, the first electrical connector 21 is covered by the insulating component 23 except for its two ends which are exposed. Similarly, the second electrical connector 22 is covered by the insulating component 23 except for its two ends which are exposed.

[0047] As shown in Figure 4, in one embodiment, the busbar 1 further includes a substrate 11, which is an insulating plate. The first conductive portion and the second conductive portion are both disposed on the substrate 11 and are electrically isolated from each other. In actual production, both the first conductive portion and the second conductive portion can be fabricated on the substrate 11 by electroplating or screen printing.

[0048] In one embodiment, the busbar 1 can be a circuit board, such as a PCB board, and the first conductive part and the second conductive part are both metal leads on the circuit board. The circuit board can be a double-layer board, or it can be a single-layer board, or a circuit board with other layers.

[0049] As shown in Figure 4, in one embodiment, the substrate 11 is provided with a plurality of first positioning structures 12, each corresponding to a current input terminal 41. The first positioning structure 12 is used to cooperate with its corresponding current input terminal 41 to define the connection position of its corresponding current input terminal 41 on the busbar 1. This facilitates the electrical connection between the current input terminal 41 and the busbar 1 and improves assembly efficiency.

[0050] In one embodiment, the first positioning structure 12 is a first positioning hole, and the current input terminal 41 passes through the corresponding first positioning hole so as to be limited by the hole wall of the first positioning hole. This arrangement facilitates the installation of the first positioning structure 12.

[0051] Alternatively, the first positioning hole can be a rectangular hole, and the current input terminal 41 can be a rectangular block. The length of the rectangular block can be equal to the length of the rectangular hole, and the width of the rectangular block can be equal to the width of the rectangular hole. When the rectangular block extends into the rectangular hole, the length direction of the rectangular block can be the length direction of the rectangular hole, and the width direction of the rectangular block can be the width direction of the rectangular hole.

[0052] In one embodiment, the first positioning hole may penetrate the substrate 11. During production, there is no need to control the depth of the first positioning hole, thereby facilitating the production and processing of the first positioning hole.

[0053] In addition, during assembly, the current input terminal 41 passes through the substrate 11 through the first positioning hole and is electrically connected to the first conductive part on the side of the substrate 11 away from the heating unit 4, which facilitates the connection between the current input terminal 41 and the first conductive part.

[0054] Furthermore, the current input terminal 41 and the first conductive part can be electrically connected by welding.

[0055] As shown in Figure 4, in one embodiment, the substrate 11 is provided with a plurality of second positioning structures 13, each corresponding to a current output terminal 42. The second positioning structure 13 is used to cooperate with its corresponding current output terminal 42 to define the connection position of the corresponding current output terminal 42 on the busbar 1. This facilitates the electrical connection between the current output terminal 42 and the busbar 1 and improves assembly efficiency.

[0056] In one embodiment, the second positioning structure 13 is a second positioning hole, and the current output terminal 42 passes through the corresponding second positioning hole so as to limit its movement by the hole wall. This arrangement facilitates the installation of the second positioning structure 13.

[0057] Alternatively, the second positioning hole can be a rectangular hole, and the current output terminal 42 can be a rectangular block. The length of the rectangular block can be equal to the length of the rectangular hole, and the width of the rectangular block can be equal to the width of the rectangular hole. When the rectangular block extends into the rectangular hole, the length direction of the rectangular block can be the length direction of the rectangular hole, and the width direction of the rectangular block can be the width direction of the rectangular hole.

[0058] In one embodiment, the second positioning hole can penetrate the substrate 11. During production, there is no need to control the depth of the second positioning hole, thus facilitating its manufacturing process.

[0059] In addition, during assembly, the current output terminal 42 passes through the substrate 11 through the second positioning hole and is electrically connected to the second conductive part on the side of the substrate 11 away from the heating unit 4, which facilitates the connection between the current output terminal 42 and the second conductive part.

[0060] Furthermore, the current output terminal 42 and the second conductive part can be electrically connected by welding.

[0061] As shown in Figure 4, in one embodiment, a third positioning structure 14 is provided on the substrate 11. The third positioning structure 14 is used to cooperate with the first electrical connector 21 to define the connection position of the first electrical connector 21 on the busbar 1. This facilitates the electrical connection between the first electrical connector 21 and the busbar 1 and can improve assembly efficiency.

[0062] In one embodiment, the third positioning structure 14 is a third positioning hole, and the first electrical connector 21 passes through the third positioning hole so as to limit its movement by means of the hole wall. This arrangement facilitates the installation of the third positioning structure 14.

[0063] Alternatively, the third positioning hole can be a rectangular hole. The first electrical connector 21 is used to mate with one end of the third positioning hole as a rectangular block. The length of the rectangular block can be equal to the length of the rectangular hole, and the width of the rectangular block can be equal to the width of the rectangular hole. When the rectangular block extends into the rectangular hole, the length direction of the rectangular block can be the length direction of the rectangular hole, and the width direction of the rectangular block can be the width direction of the rectangular hole.

[0064] In one embodiment, the third positioning hole can penetrate the substrate 11. During production, there is no need to control the depth of the third positioning hole, thus facilitating its manufacturing process.

[0065] In addition, during assembly, the first electrical connector 21 passes through the substrate 11 through the third positioning hole and is electrically connected to the first conductive part on the side of the substrate 11 away from the heating unit 4, which facilitates the connection between the first electrical connector 21 and the first conductive part.

[0066] Furthermore, the first electrical connector 21 and the first conductive part can be electrically connected by welding.

[0067] As shown in Figure 4, in one embodiment, a fourth positioning structure 15 is provided on the substrate 11. The fourth positioning structure 15 is used to cooperate with the second electrical connector 22 to define the connection position of the second electrical connector 22 on the busbar 1. This facilitates the electrical connection between the second electrical connector 22 and the busbar 1 and can improve assembly efficiency.

[0068] In one embodiment, the fourth positioning structure 15 is a fourth positioning hole, and the second electrical connector 22 passes through the fourth positioning hole so as to limit its movement by means of the hole wall. This arrangement facilitates the installation of the fourth positioning structure 15.

[0069] In addition, the fourth positioning hole can be a rectangular hole, and the second electrical connector 22 is used to mate with one end of the fourth positioning hole as a rectangular block. The length of the rectangular block can be equal to the length of the rectangular hole, and the width of the rectangular block can be equal to the width of the rectangular hole. When the rectangular block extends into the rectangular hole, the length direction of the rectangular block can be the length direction of the rectangular hole, and the width direction of the rectangular block can be the width direction of the rectangular hole.

[0070] In one embodiment, the fourth positioning hole may penetrate the substrate 11. During production, there is no need to control the depth of the fourth positioning hole, thus facilitating its manufacturing process.

[0071] In addition, during assembly, the second electrical connector 22 passes through the substrate 11 from the fourth positioning hole and is electrically connected to the second conductive part on the side of the substrate 11 away from the heating unit 4, which facilitates the connection between the second electrical connector 22 and the second conductive part.

[0072] Furthermore, the second electrical connector 22 and the second conductive part can be electrically connected by welding.

[0073] As shown in Figure 3, in one embodiment, the power supply board 3 is provided with a fifth positioning structure 31, which is used to cooperate with the first electrical connector 21 to define the connection position of the first electrical connector 21 on the power supply board 3. This facilitates the electrical connection between the first electrical connector 21 and the power supply board 3 and can improve assembly efficiency.

[0074] In one embodiment, the fifth positioning structure 31 is a fifth positioning hole, and the first electrical connector 21 passes through the fifth positioning hole so as to limit its movement by means of the hole wall. This arrangement facilitates the installation of the fifth positioning structure 31.

[0075] In addition, the fifth positioning hole can be a rectangular hole, and the first electrical connector 21 is used to mate with one end of the fifth positioning hole as a rectangular block. The length of the rectangular block can be equal to the length of the rectangular hole, and the width of the rectangular block can be equal to the width of the rectangular hole. When the rectangular block extends into the rectangular hole, the length direction of the rectangular block can be the length direction of the rectangular hole, and the width direction of the rectangular block can be the width direction of the rectangular hole.

[0076] In one embodiment, the fifth positioning hole can penetrate the power supply board 3. During production, there is no need to control the depth of the fifth positioning hole, thus facilitating its manufacturing process.

[0077] In addition, during assembly, the first electrical connector 21 passes through the power supply board 3 from the fifth positioning hole and is electrically connected to the first pin on the side of the power supply board 3 away from the busbar 1, which facilitates the connection between the first electrical connector 21 and the first pin.

[0078] In addition, the first electrical connector 21 and the first pin can be electrically connected by soldering.

[0079] As shown in Figure 3, in one embodiment, the power supply board 3 is provided with a sixth positioning structure 32, which is used to cooperate with the second electrical connector 22 to define the connection position of the second electrical connector 22 on the power supply board 3. This facilitates the electrical connection between the second electrical connector 22 and the power supply board 3 and can improve assembly efficiency.

[0080] In one embodiment, the sixth positioning structure 32 is a sixth positioning hole, and the second electrical connector 22 passes through the sixth positioning hole so as to limit its movement by means of the hole wall. This arrangement facilitates the installation of the sixth positioning structure 32.

[0081] In addition, the sixth positioning hole can be a rectangular hole, and the second electrical connector 22 is used to mate with one end of the sixth positioning hole as a rectangular block. The length of the rectangular block can be equal to the length of the rectangular hole, and the width of the rectangular block can be equal to the width of the rectangular hole. When the rectangular block extends into the rectangular hole, the length direction of the rectangular block can be the length direction of the rectangular hole, and the width direction of the rectangular block can be the width direction of the rectangular hole.

[0082] In one embodiment, the sixth positioning hole can penetrate the power supply board 3. During production, there is no need to control the depth of the sixth positioning hole, thus facilitating its manufacturing process.

[0083] In addition, during assembly, the second electrical connector 22 passes through the power supply board 3 from the sixth positioning hole and is electrically connected to the second pin on the side of the power supply board 3 away from the busbar 1, which facilitates the connection between the second electrical connector 22 and the second pin.

[0084] In addition, the second electrical connector 22 and the second pin can be electrically connected by soldering.

[0085] In one embodiment, there are multiple second conductive parts that are electrically isolated from each other; there are multiple second electrical connectors 22 that are electrically isolated from each other; there are multiple second pins that are electrically isolated from each other; the second conductive parts, the second electrical connectors 22 and the second pins correspond one-to-one; each second conductive part is connected to a different number of current output terminals 42; the two ends of the second electrical connector 22 are respectively connected to the corresponding second conductive part and the second pin.

[0086] During operation, by connecting different second conductive parts to the current circuit, different numbers of heating units 4 can be energized and heated, thereby enabling control of the heating power of the heater 10.

[0087] When there are multiple second electrical connectors 22, there can be multiple fourth positioning structures 15 and sixth positioning structures 32. In this case, the second electrical connectors 22, the fourth positioning structure 15 and the sixth positioning structure 32 correspond one-to-one. The fourth positioning structure 15 and the sixth positioning structure 32 are used to position the second electrical connectors 22 corresponding to them.

[0088] In one embodiment, the insulating component 23 is an engineering plastic block. That is, the insulating component 23 is made of engineering plastic, which gives it good insulation properties and facilitates better processing precision.

[0089] As shown in Figure 5, in one embodiment, the insulating component 23 includes a first insulating block 231 and a second insulating block 232; wherein the number of first insulating blocks 231 is one, and the number of second insulating blocks 232 is greater than or equal to one; the first insulating block 231 covers the first electrical connector 21, or the first insulating block 231 covers the first electrical connector 21 and at least one second electrical connector 22; each second insulating block 232 covers at least one second electrical connector 22. This allows for the arrangement of the first insulating blocks 231 and the second insulating blocks 232 according to the actual scenario, facilitating production and assembly.

[0090] In one embodiment, the first electrical connector 21 may be a metal plate, such as a copper plate or an aluminum plate. The second electrical connector 22 may also be a metal plate, such as a copper plate or an aluminum plate.

[0091] In one embodiment, the power supply board may also be a PCB board or the like.

[0092] As shown in FIG6, in one embodiment, the heating unit 4 includes an electric heating element 43, a first electrode plate 44, a second electrode plate 45, a clamping member 46, and an insulating pad 47.

[0093] The first electrode plate 44 and the second electrode plate 45 are respectively disposed on both sides of the electric heating element 43 and are electrically connected to the electric heating element 43. The electric heating element 43, the first electrode plate 44, and the second electrode plate 45 are connected to form a heating unit. The current input terminal 41 is part of the first electrode plate 44, and the current output terminal 42 is part of the second electrode plate 45. During operation, the electric heating element 43 can be powered through the first electrode plate 44 and the second electrode plate 45 so that the electric heating element 43 can generate heat.

[0094] The clamping member 46 includes a first clamping plate 461, a second clamping plate 462, and a connecting plate 463. The two ends of the connecting plate 463 are respectively connected to the first clamping plate 461 and the second clamping plate 462. The heating unit is located between the first clamping plate 461 and the second clamping plate 462 so that the heating unit can be clamped by the first clamping plate 461 and the second clamping plate 462. After assembly, the first clamping plate 461, the first electrode plate 44, the electric heating element 43, the second electrode plate 45, and the second clamping plate 462 are arranged in sequence.

[0095] In addition, the clamping member 46 is a metal part, and the first clamping plate 461, the second clamping plate 462, and the connecting plate 463 are all metal plates. An insulating pad 47 is provided between the heating unit 4 and the clamping member 46. Specifically: a portion of the insulating pad 47 is provided between the first clamping plate 461 and the first electrode plate 44 to prevent short circuit between them; a portion of the insulating pad 47 is provided between the second clamping plate 462 and the second electrode plate 45 to prevent short circuit between them; and a portion of the insulating pad 47 is provided between the electric heating element 43 and the connecting plate 463 to prevent short circuit between them. Furthermore, the insulating pad 47 can be a silicone pad, etc.

[0096] In one embodiment, the electric heating element 43 is a PTC heating element, where PTC is short for Positive Temperature Coefficient. This design prevents the heating unit 4 from generating excessively high temperatures and also reduces the heat generated by the heating unit 4 when the ambient temperature is too high.

[0097] As shown in Figures 2 and 7, in one embodiment, the heater 10 further includes a first housing 5, which has a first receiving cavity 51, a second receiving cavity 52, and a mounting hole 53. The first receiving cavity 51 and the second receiving cavity 52 are spaced apart, and the mounting hole 53 connects the first receiving cavity 51 and the second receiving cavity 52. ​​The heating unit 4 and the busbar 1 are both disposed in the first receiving cavity 51. The power supply board 3 is disposed in the second receiving cavity 52. ​​The lead-out member 2 passes through the mounting hole 53 and extends into the first receiving cavity 51 and the second receiving cavity 52 respectively.

[0098] This configuration can reduce the adverse effects of the heat generated by the heating unit 4 and the busbar 1 on the power supply board 3.

[0099] In addition, the lead-out member 2 extends into the first receiving cavity 51 and the second receiving cavity 52 respectively. Specifically, the two ends of the insulating member 23 extend into the first receiving cavity 51 and the second receiving cavity 52 respectively, the two ends of the first electrical connector 21 extend into the first receiving cavity 51 and the second receiving cavity 52 respectively, and the two ends of the second electrical connector 22 extend into the first receiving cavity 51 and the second receiving cavity 52 respectively.

[0100] As shown in Figure 1, in one embodiment, the first housing 5 includes a base 55 and a heating part 56. The heating part 56 is connected to the base 55 and is located above the base 55. A first receiving cavity 51 is disposed on the heating part 56 and located on the side of the heating part 56 (this surface can be the front surface of the heating part 56); a second receiving cavity 52 is disposed on the base 55 and located on the surface of the base 55 opposite to the heating part 56, that is, the second receiving cavity 52 is located on the lower surface of the base 55.

[0101] As shown in Figure 7, in one embodiment, a mounting groove 54 is provided on the bottom surface of the first receiving cavity 51, and each heating unit 4 is installed in the mounting groove 54. Force can be applied to the heating unit 4 through the groove wall of the mounting groove 54 so that the heating unit 4 is locked in the mounting groove 54.

[0102] The number of mounting slots 54 can be multiple. In this case, each mounting slot 54 can be used to install one heating unit 4 or multiple heating units 4.

[0103] In one embodiment, the insulating member 23 is located between the bottom surface of the first receiving cavity 51 and the busbar 1. At this time, the heating unit 4 and the insulating member 23 are located on the same side of the busbar 1, which facilitates the cooperation of the current input terminal, the current output terminal, the first electrical connector and the second electrical connector with the busbar 1.

[0104] As shown in Figure 1, in one embodiment, the heater 10 further includes a second housing 6, which is connected to and encloses the first housing 5 to form a heat exchange cavity; the outer surface of the second housing 6 is provided with an input hole 61 and an output hole 62, both of which are connected to the heat exchange cavity; the heating unit 4 is used to heat the heat exchange medium in the heat exchange cavity.

[0105] During operation, the heat exchange medium outside the heater 10 can be introduced into the heat exchange cavity through the inlet port 61, and the heat exchange medium inside the heat exchange cavity can be discharged from the heater 10 through the outlet port 62. Moreover, the heat exchange medium can be heated by the heating unit 4 when it flows into the heat exchange cavity.

[0106] Furthermore, the second housing 6 is actually connected to and encloses the heating part 56 to form a heat exchange cavity, and the first receiving cavity 51 is provided on the surface of the heating part 56 opposite to the second housing 6. At the same time, the second housing 6 is also located above the base 55.

[0107] As shown in Figure 1, in one embodiment, the heater 10 further includes a cover plate 7, which is connected to the first housing 5 and closes the opening of the first receiving cavity 51. After assembly, the manifold 1 is located between the bottom surface of the first receiving cavity 51 and the cover plate 7.

[0108] In addition, the cover plate 7 is actually connected to the heating part 56 and is located on the side of the heating part 56 away from the second housing 6.

[0109] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0110] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be included within the protection scope of this utility model.

Claims

1. A heater, characterized in that, The device includes a busbar, lead-out components, a power supply board, and multiple heating units. The current input terminals of each heating unit are electrically connected to a first conductive portion of the busbar. The current output terminals of each heating unit are electrically connected to a second conductive portion of the busbar. The lead-out components include an insulating component, a first electrical connector, and a second electrical connector. The insulating component covers the first and second electrical connectors. Both ends of the first electrical connector extend beyond the insulating component and are electrically connected to the first conductive portion and a first pin of the power supply board, respectively. Both ends of the second electrical connector extend beyond the insulating component and are electrically connected to the second conductive portion and a second pin of the power supply board, respectively.

2. The heater according to claim 1, characterized in that, The number of second conductive parts is multiple and they are electrically isolated from each other; the number of second electrical connectors is multiple and they are electrically isolated from each other; the number of second pins is multiple and they are electrically isolated from each other; the second conductive parts, the second electrical connectors, and the second pins correspond one-to-one; each second conductive part is connected to a different number of current output terminals; the two ends of the second electrical connector are respectively connected to the corresponding second conductive part and the second pin.

3. The heater according to claim 2, characterized in that, The insulating component includes a first insulating block and a second insulating block; wherein the number of the first insulating block is one, and the number of the second insulating block is greater than or equal to one; the first insulating block covers the first electrical connector, or the first insulating block covers the first electrical connector and at least one second electrical connector; each second insulating block covers at least one second electrical connector.

4. The heater according to claim 1, characterized in that, The heater further includes a first housing, the first housing having a first receiving cavity, a second receiving cavity, and a mounting hole; the first receiving cavity and the second receiving cavity are spaced apart, and the mounting hole connects the first receiving cavity and the second receiving cavity; the heating unit and the busbar are both disposed in the first receiving cavity; the power supply board is disposed in the second receiving cavity; the lead-out member passes through the mounting hole and extends into the first receiving cavity and the second receiving cavity respectively.

5. The heater according to claim 4, characterized in that, The heater further includes a second housing, which is connected to the first housing to form a heat exchange cavity; an input hole and an output hole are provided on the outer surface of the second housing, and the input hole and the output hole are both connected to the heat exchange cavity; the heating unit is used to heat the heat exchange medium in the heat exchange cavity.

6. The heater according to claim 4, characterized in that, The insulating component is located between the bottom surface of the first receiving cavity and the busbar; the bottom surface of the first receiving cavity is provided with a plurality of mounting slots, and each mounting slot is provided with at least one heating unit.

7. The heater according to claim 1, characterized in that, The busbar is a PCB board, and the busbar also includes a substrate, which is an insulating board. The first conductive part and the second conductive part are both disposed on the substrate and electrically isolated from each other. The substrate has a plurality of first positioning structures, each corresponding to a current input terminal. The first positioning structure is used to cooperate with the corresponding current input terminal to define the connection position of the corresponding current input terminal on the busbar. The substrate has a plurality of second positioning structures, each corresponding to a current output terminal. The second positioning structure is used to cooperate with the corresponding current output terminal to define the connection position of the corresponding current output terminal on the busbar. The substrate has a third positioning structure, which is used to cooperate with the first electrical connector to define the connection position of the first electrical connector on the busbar. The substrate has a fourth positioning structure, which is used to cooperate with the corresponding second electrical connector to define the connection position of the second electrical connector on the busbar.

8. The heater according to claim 7, characterized in that, The first positioning structure is a first positioning hole, and the current input terminal passes through the corresponding first positioning hole to be limited by the hole wall of the first positioning hole; the second positioning structure is a second positioning hole, and the current output terminal passes through the corresponding second positioning hole to be limited by the hole wall of the second positioning hole; the third positioning structure is a third positioning hole, and the first electrical connector passes through the third positioning hole to be limited by the hole wall of the third positioning hole; the fourth positioning structure is a fourth positioning hole, and the second electrical connector passes through the fourth positioning hole to be limited by the hole wall of the fourth positioning hole; the first positioning hole penetrates the substrate; the second positioning hole penetrates the substrate; the third positioning hole penetrates the substrate; the fourth positioning hole penetrates the substrate.

9. The heater according to claim 1, characterized in that, The power supply board is provided with a fifth positioning structure, which is used to cooperate with the first electrical connector to limit the connection position of the first electrical connector on the power supply board; the power supply board is provided with a sixth positioning structure, which is used to cooperate with the second electrical connector to limit the connection position of the second electrical connector on the power supply board.

10. The heater according to claim 9, characterized in that, The fifth positioning structure is a fifth positioning hole, and the first electrical connector passes through the fifth positioning hole to limit its movement through the hole wall; the sixth positioning structure is a sixth positioning hole, and the second electrical connector passes through the sixth positioning hole to limit its movement through the hole wall; the fifth positioning hole penetrates the power supply board; the sixth positioning hole penetrates the power supply board.

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