Heater manifold and heater assembly

Abstract

The present application provides a heater confluence mechanism and a heater assembly, which relate to the field of heat exchange technology. The heater confluence mechanism includes a confluence PCB board and a plurality of conductive connectors. The confluence PCB board is provided with a plurality of first welding holes, each of which is used for plugging the electrode sheet corresponding to the heating core to realize the positioning of the confluence PCB board and the electrode sheet before welding; one end of each conductive connector is welded to the confluence PCB board, and the other end of each conductive connector is used for welding to the control circuit board. The confluence mechanism has a simple structure, is easy to process and manufacture, has a low cost, and is not prone to poor contact after assembly, and operates stably and reliably.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchange, in particular to a heater confluence mechanism and a heater assembly. Background Art

[0002] At present, heating products have been widely used in many fields. Many heating products are composed of multiple groups of heating units, each of which has two wiring lugs. It is usually necessary to pre-install the heating unit in a housing or heat sink, and then connect it to a power source. In the prior art, the wiring lugs of multiple groups of heating units are usually connected to an external power source by directly welding the heating unit to a circuit board or a circuit board. With such a design, since the temperature of the heating unit is high during operation, the high temperature is easily transferred directly to the circuit board or circuit board, causing the temperature of the circuit board to rise, affecting the normal operation time of the circuit board, and shortening the service life of the circuit board and the electrical components thereon. In some scenarios, in order to improve the impact of temperature on the circuit board, a busbar is provided between the heating unit and the circuit board, the wiring lugs of the heating unit are connected to the busbar, and the busbar is then connected to the circuit board, that is, a transfer structure is added in the middle, which increases the distance between the heating unit and the circuit board and reduces heat transfer.

[0003] However, the existing method of adding a busbar to connect the wiring piece and the circuit board is that the wiring piece and the busbar are plug-in matched, and the busbar and the circuit board are also plug-in matched, and the plug-in position is poor in firmness and easy to loosen, affecting normal operation. In addition, the structure of the busbar is complex and the processing cost is high. Utility Model Content

[0004] The purpose of the utility model is to provide a heater confluence mechanism and a heater assembly, which can simplify the confluence structure, reduce the processing difficulty, reduce the processing and manufacturing costs, and can improve the reliability of electrical connection, and is not prone to loosening and affecting the normal operation of the heater.

[0005] The embodiment of the utility model is achieved as follows:

[0006] In a first aspect, the utility model provides a heater confluence mechanism, which is used to electrically connect the electrode sheet of the heating core and the control circuit board at the same time, comprising:

[0007] A busbar PCB board and a plurality of conductive connectors, wherein the busbar PCB board is provided with a plurality of first welding holes, each of which is used for plugging in an electrode sheet corresponding to a heating core, so as to realize the positioning of the busbar PCB board and the electrode sheet before welding; one end of each of the conductive connectors is welded to the busbar PCB board, and the other end of each of the conductive connectors is used for welding to the control circuit board.

[0008] In an optional embodiment, a plurality of second welding holes are further provided on the busbar PCB board, and one ends of the plurality of conductive connectors are respectively inserted into corresponding second welding holes.

[0009] Based on the above scheme, by inserting the conductive connector into the second welding hole, the conductive connector is firmly combined with the busbar PCB board, the conductive connector is accurately positioned relative to the busbar PCB board, the positioning is convenient, the installation is convenient, and the conductive connector is not easy to shift when welding with the busbar PCB board, thereby improving the welding efficiency and quality. After the conductive connector is welded to the busbar PCB board, the conductive connector and the busbar PCB board transmit external force through the second welding hole, which is not easy to damage the weld and has a long service life.

[0010] In an optional embodiment, the second welding hole penetrates the busbar PCB board in the thickness direction of the busbar PCB board; the conductive connector includes a first connecting segment and a second connecting segment connected to each other, the first connecting segment and the second connecting segment are arranged at an angle, an end of the first connecting segment away from the second connecting segment is inserted into the corresponding second welding hole, and an end of the second connecting segment away from the first connecting segment is used for welding to the control circuit board.

[0011] Based on the above scheme, the conductive connector is set as a bending part, which can adapt to the arrangement of the bus PCB board and the control circuit board, so that the conductive connector and the bus PCB board are stably plugged in, the conductive connector and the control circuit board are stably plugged in, and the combination of the conductive connector, the bus PCB board and the control circuit board is firm and reliable, not easy to loosen, and has a long service life.

[0012] In an optional embodiment, the connection between the first connecting section and the second connecting section is an arc-shaped transition.

[0013] Based on the above scheme, stress concentration is not likely to occur at the bending part of the conductive connector, and it is not likely to crack or break, so it is safe to use and has a long service life. At the same time, during the assembly process, appropriate force can be applied to the conductive connector to change the bending degree of the arc transition, that is, the conductive connector can be fine-tuned in shape to compensate for errors caused by manufacturing or assembly.

[0014] In an optional embodiment, the busbar PCB is further provided with fixing holes for fasteners to pass through, and the fasteners are used to connect with the controller housing.

[0015] Based on the above solution, the busbar PCB is connected to the controller housing by fasteners. The position of the busbar PCB relative to the heating core and the control circuit board is stable, which can provide a certain supporting force and improve the stability and reliability of the connection.

[0016] In a second aspect, the utility model provides a heater assembly, the heater assembly comprising:

[0017] A heating core, a control circuit board and a heater confluence mechanism as described in any one of the aforementioned embodiments, wherein the electrode sheet of the heating core is inserted into the first welding hole on the confluence PCB board, the electrode sheet is welded to the confluence PCB board, and the end of the conductive connector away from the confluence PCB board is welded to the control circuit board.

[0018] In an optional implementation, the heating core and the conductive connector are both located on the same side of the busbar PCB.

[0019] Based on the above solution, the space on one side of the busbar PCB can be reasonably utilized to improve the compactness of the heating core, the conductive connector and the busbar PCB, reduce the overall volume, and facilitate miniaturization and lightweight design.

[0020] In an optional embodiment, the heater assembly further includes a controller housing, and the heating core, the control circuit board and the busbar PCB board are all mounted on the controller housing.

[0021] Based on the above solution, the heating core, control circuit board and bus PCB board are easy to install, the position is stable and reliable, and abnormal noise is not likely to occur during use.

[0022] In an optional embodiment, the controller housing includes a connected supporting plate and a surrounding plate, the supporting plate and the surrounding plate cooperate to define a receiving groove, and the supporting plate is provided with an avoidance hole connected to the receiving groove; the control circuit board is installed in the receiving groove, the heating core and the bus PCB board are both installed on the supporting plate and located outside the receiving groove; the conductive connector is passed through the avoidance hole.

[0023] Based on the above solution, the control circuit board and the heating core are separated by the support plate, and the heat generated by the heating core is not easily transferred to the control circuit board. In addition, by setting the avoidance hole, the conductive connector can be allowed to pass through the avoidance hole to connect the busbar PCB and the control circuit board on both sides of the support plate, which is convenient for installation.

[0024] In an optional embodiment, a mounting lug is protruding from the carrier plate and is located outside the accommodating groove, and the busbar PCB board is fixedly connected to the mounting lug via a fastener.

[0025] Based on the above solution, the busbar PCB and the carrier board are closely matched and easy to assemble. The fasteners can be bolts and the like.

[0026] The beneficial effects of the embodiments of the utility model are:

[0027] In summary, the heater confluence mechanism provided in this embodiment utilizes the confluence PCB board and the conductive connector to electrically connect the electrode sheet of the heating core and the control circuit board. Since the confluence PCB board has a simple structure, it is easy to process and has a low processing and manufacturing cost. In addition, the electrode sheet can be inserted into the first welding hole, and the electrode sheet and the confluence PCB board are firmly combined. After the two are welded, they are not easy to loosen, and the use safety is high. Similarly, the conductive connector is welded to the confluence PCB board and the control circuit board at the same time, and the connection structure is stable and not easy to loosen, so it is safe and reliable to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 A schematic diagram of a heater confluence mechanism according to an embodiment of the present utility model;

[0030] Figure 2 This is a schematic diagram of the application of the heater confluence mechanism of the embodiment of the utility model;

[0031] Figure 3 It is a partial schematic diagram of a heater assembly according to an embodiment of the utility model;

[0032] Figure 4 It is a schematic diagram of a controller housing according to an embodiment of the utility model.

[0033] icon:

[0034] 100- bus PCB board; 101- first welding hole; 102- second welding hole; 103- fixing hole; 200- conductive connector; 210- first connecting section; 220- arc section; 230- second connecting section; 300- heating core; 310- electrode sheet; 400- control circuit board; 500- controller housing; 510- load board; 511- avoidance hole; 520- enclosure; 530- mounting lug. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0036] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0038] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0039] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0040] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] In the prior art, when the terminal piece (also referred to as the electrode piece 310) of the heating core 300 is electrically connected to the control circuit board 400, in order to reduce the effect of the heat of the heating core 300 on the control circuit board 400, a busbar is provided between the heating core 300 and the control circuit board 400. The busbar is made of an insulating plate and a metal card, the terminal piece is plug-fitted to the metal card, and the busbar is plug-fitted to the control circuit board 400. The plug-fitting is used to achieve electrical connection, which is prone to poor contact and the like, and has poor stability.

[0042] In view of this, the designer provides a heater confluence mechanism that can simplify the confluence structure, reduce processing difficulty, reduce processing and manufacturing costs, and improve the reliability of electrical connections, making it less likely to loosen and affect the normal operation of the heater.

[0043] It should be noted that the heater confluence mechanism is used to electrically connect the electrode sheets 310 of the heating core 300 and the control circuit board 400 at the same time. The number of heating cores 300 is generally multiple, and each heating core 300 includes a pair of electrode sheets 310. In this way, the number of electrode sheets 310 is multiple, and the specific number is not limited in this embodiment. During assembly, the electrode sheets 310 of all heating cores 300 are electrically connected to the control circuit board 400 through the heater confluence mechanism.

[0044] Please combine Figure 1 and Figure 2 In this embodiment, the heater busbar mechanism includes a busbar PCB board 100 and a plurality of conductive connectors 200. The busbar PCB board 100 is provided with a plurality of first welding holes 101. Each first welding hole 101 is used for plugging in the electrode sheet 310 corresponding to the heating core 300 to achieve positioning of the busbar PCB board 100 and the electrode sheet 310 before welding; one end of each conductive connector 200 is welded to the busbar PCB board 100, and the other end of each conductive connector 200 is used for welding to the control circuit board 400.

[0045] Based on the above scheme, the assembly method of the heater confluence mechanism is as follows:

[0046] Please combine Figure 2, the electrode sheet 310 of the heating core 300 and the control circuit board 400 are electrically connected by using the busbar PCB board 100 and the conductive connector 200. That is, all the electrode sheets 310 on the heating core 300 can be inserted into the multiple first welding holes 101 on the busbar PCB board 100, and the electrode sheets 310 and the busbar PCB board 100 are welded to achieve electrical connection. Then, the control circuit board 400 is matched with the conductive connector 200, so that the ends of the multiple conductive connectors 200 are welded on the control circuit board 400. Since the conductive connector 200 is welded and fixed to the busbar PCB board 100, the electrical connection of the electrode sheet 310, the busbar PCB board 100, the conductive connector 200 and the control circuit board 400 is achieved. Since the busbar PCB board 100 has a simple structure, it is easy to process and has a low processing and manufacturing cost. Furthermore, the electrode sheet 310 can be inserted into the first welding hole 101, and positioned by the first welding hole 101, so that the electrode sheet 310 is firmly combined with the busbar PCB board 100, and the two are not easy to get loose after welding, and the use safety is high. At the same time, the conductive connector 200 is welded with the busbar PCB board 100 and the control circuit board 400 at the same time, and the connection structure is stable, not easy to get loose, and the use is safe and reliable.

[0047] The following embodiments illustrate the details of the heater confluence mechanism provided in the present application by way of examples.

[0048] In this embodiment, optionally, the busbar PCB 100 is set as a rectangular plate structure, and the busbar PCB 100 is provided with a plurality of first welding holes 101, a plurality of second welding holes 102 and a fixing hole 103. The first welding hole 101 and the second welding hole 102 are both flat holes, which can be adapted to the flat electrode sheet 310 and the conductive connector 200. The first welding hole 101 and the second welding hole 102 are arranged at intervals in the width direction of the busbar PCB 100. The fixing hole 103 can be set as a circular hole, the fixing hole 103 is close to one side of the length direction of the busbar PCB 100, and the fixing hole 103 is provided for fasteners to pass through, and the fasteners can be but are not limited to bolts, etc.

[0049] It should be understood that the number of the first welding holes 101 and the second welding holes 102 is set as needed, the number of the first welding holes 101 is consistent with the number of the electrode sheets 310, and the number of the second welding holes 102 is consistent with the number of the conductive connectors 200. In addition, the first welding holes 101 and the second welding holes 102 are both perpendicular to the bus PCB board 100, that is, the first welding holes 101 and the second welding holes 102 both penetrate the bus PCB board 100 in a direction perpendicular to the bus PCB board 100. For example, in this embodiment, the number of the first welding holes 101 is eight and they are evenly divided into two rows. The number of the second welding holes 102 is five and they are arranged in one row.

[0050] During actual assembly, the electrode sheet 310 is welded to the pad on the bus PCB 100 , the conductive connector 200 is welded to the pad on the bus PCB 100 , and the conductive connector 200 is welded to the pad on the control circuit board 400 .

[0051] In this embodiment, optionally, the number of the conductive connectors 200 is set as needed. For example, in this embodiment, the number of the conductive connectors 200 is five, and each conductive connector 200 is set as a bending piece. Specifically, the conductive connector 200 is formed by bending a metal strip once, and the conductive connector includes a first connecting section 210, an arc section 220, and a second connecting section 230 connected to each other. The first connecting section 210 and the second connecting section 230 are set at an angle, such as a 90° angle. The arc section 220 is a 1 / 4 arc shape. The first connecting section 210 and the second connecting section 230 are in an arc transition, which is not prone to stress concentration and has a long service life. During assembly, the end of the first connecting section 210 away from the second connecting section 230 is plugged into the corresponding second welding hole 102. The end of the second connecting section 230 away from the first connecting section 210 is plugged into the control circuit board 400.

[0052] In this embodiment, the heater confluence mechanism can electrically connect the electrode sheet 310 of the heating core 300 with the control circuit board 400, and has a simple structure, is easy to process and manufacture, and can also provide a stable connection structure, is not prone to poor contact, and is safe and reliable to use.

[0053] Please combine Figure 3 and Figure 4 The present embodiment further provides a heater assembly, which includes a heating core 300, a control circuit board 400, a heater confluence mechanism and a controller housing 500. The heating core 300, the control circuit board 400 and the confluence PCB board 100 are all installed in the controller housing 500. The electrode sheet 310 of the heating core 300 is inserted into the first welding hole 101 on the confluence PCB board 100, the electrode sheet 310 is welded to the confluence PCB board 100, and the end of the conductive connector 200 away from the confluence PCB board 100 is welded to the control circuit board 400. The heating core 300 and the conductive connector 200 are both located on the same side of the confluence PCB board 100.

[0054] When the heater assembly is assembled, the heating core 300 is roughly horizontally arranged with the control circuit board 400 , and the busbar PCB 100 is roughly vertically arranged with the heating core 300 and the control circuit board 400 .

[0055] It should be understood that the heating core 300 may be a PTC heating core 300 or a MCH heating core 300 or the like.

[0056] Optionally, the controller housing 500 includes a connected carrier plate 510 and a surrounding plate 520, the carrier plate 510 and the surrounding plate 520 cooperate to define a receiving groove, and the carrier plate 510 is provided with an avoidance hole 511 connected to the receiving groove. The control circuit board 400 is installed in the receiving groove, and the heating core 300 and the busbar PCB board 100 are both installed on the carrier plate 510 and are located outside the receiving groove. The conductive connector 200 is inserted into the avoidance hole 511. The control circuit board 400 and the heating core 300 are separated by the carrier plate 510, and the heat generated by the heating core 300 is not easily transferred to the control circuit board 400. In addition, by providing the avoidance hole 511, the conductive connector 200 can be allowed to pass through the avoidance hole 511 to connect the busbar PCB board 100 and the control circuit board 400 located on both sides of the carrier plate 510, which is convenient for installation.

[0057] Further, the carrier plate 510 is provided with a mounting lug 530 outside the receiving groove, and the mounting lug 530 is provided with an assembly hole, and the busbar PCB 100 is fixedly connected to the mounting lug 530 by a fastener. The fastener can be screwed into the assembly hole after passing through the fixing hole 103, or the fastener is simultaneously passed through the fixing hole 103 and the assembly hole, and the fixed connection between the busbar PCB 100 and the mounting lug 530 is realized by the fastener set as a bolt. The installation structure of the busbar PCB 100 is simple, easy to operate, and can improve the firmness of the combination of the busbar PCB 100 and the controller housing 500.

[0058] It should be understood that a positioning hole may be provided on the control circuit board 400 , and the conductive connector 200 may be inserted into the positioning hole to improve the firmness of the combination and the firmness of the welding.

[0059] The heater assembly provided in this embodiment is easy to assemble and has low cost. During use, the connection positions of the busbar PCB board 100 and the electrode sheet 310, the connection positions of the conductive connector 200 and the busbar PCB board 100, and the connection positions of the conductive connector 200 and the control circuit board 400 are not prone to poor contact.

[0060] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A heater confluence mechanism, used to electrically connect an electrode sheet (310) of a heating core (300) and a control circuit board (400) at the same time, characterized in that: include: A busbar PCB (100) and a plurality of conductive connectors (200), wherein the busbar PCB (100) is provided with a plurality of first welding holes (101), each of the first welding holes (101) being used for plugging an electrode sheet (310) corresponding to a heating core (300) so as to achieve positioning of the busbar PCB (100) and the electrode sheet (310) before welding; one end of each of the conductive connectors (200) is welded to the busbar PCB (100), and the other end of each of the conductive connectors (200) is used for welding to the control circuit board (400).

2. The heater confluence mechanism according to claim 1, characterized in that: The busbar PCB (100) is also provided with a plurality of second welding holes (102), and one end of each of the plurality of conductive connectors (200) is respectively inserted into a corresponding second welding hole (102).

3. The heater confluence mechanism according to claim 2, characterized in that: The second welding hole (102) penetrates the busbar PCB (100) in the thickness direction of the busbar PCB (100); the conductive connector (200) comprises a first connecting section (210) and a second connecting section (230) which are connected to each other, the first connecting section (210) and the second connecting section (230) being arranged at an angle, an end of the first connecting section (210) away from the second connecting section (230) being inserted into the corresponding second welding hole (102), and an end of the second connecting section (230) away from the first connecting section (210) being used for welding to the control circuit board (400).

4. The heater confluence mechanism according to claim 3, characterized in that: The connection between the first connecting section (210) and the second connecting section (230) is in an arc-shaped transition.

5. The heater confluence mechanism according to claim 1, characterized in that: The busbar PCB (100) is also provided with a fixing hole (103) for a fastener to pass through, and the fastener is used to be connected to the controller housing (500).

6. A heater assembly, characterized in that: The heater assembly comprises: A heating core (300), a control circuit board (400) and a heater confluence mechanism according to any one of claims 1 to 5, wherein the electrode sheet (310) of the heating core (300) is inserted into a first welding hole (101) on the confluence PCB board (100), the electrode sheet (310) is welded to the confluence PCB board (100), and the end of the conductive connector (200) away from the confluence PCB board (100) is welded to the control circuit board (400).

7. The heater assembly according to claim 6, characterized in that: The heating core (300) and the conductive connecting member (200) are both located on the same side of the busbar PCB (100).

8. The heater assembly according to claim 6, characterized in that: The heater assembly further comprises a controller housing (500), and the heating core (300), the control circuit board (400) and the busbar PCB board (100) are all mounted on the controller housing (500).

9. The heater assembly according to claim 8, characterized in that: The controller housing (500) comprises a connected carrying plate (510) and a surrounding plate (520); the carrying plate (510) and the surrounding plate (520) cooperate to define a receiving groove; the carrying plate (510) is provided with an avoidance hole (511) connected to the receiving groove; the control circuit board (400) is installed in the receiving groove; the heating core (300) and the busbar PCB (100) are both installed on the carrying plate (510) and are located outside the receiving groove; the conductive connector (200) is passed through the avoidance hole (511).

10. The heater assembly according to claim 9, characterized in that: The carrier plate (510) is provided with a mounting lug (530) located outside the receiving groove, and the busbar PCB (100) is fixedly connected to the mounting lug (530) via a fastener.

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