Controller and engine system

Abstract

The utility model relates to the technical field of electrical apparatus elements, and discloses a controller and an engine system. The shell comprises an upper cover and a back plate, the upper cover and the back plate are matched to form a containing bin, the upper cover is provided with a mounting plane, a boss is arranged on the mounting plane, a mounting hole is formed in the boss, and the containing bin is communicated with the outside through the mounting hole; and the waterproof ventilation valve is mounted in the mounting hole. Due to the fact that the boss is located at a higher position relative to the installation plane, even if the shell is affected by factors such as machining planeness and assembly angles, accumulated water exists on the installation plane around the boss, and due to the position height difference, the accumulated water cannot flow to the periphery of the waterproof ventilation valve. In other words, accumulated water is difficult to flow into the accommodating bin from a gap between the waterproof ventilation valve and the shell (namely, a gap between the waterproof ventilation valve and the mounting hole), so that the circuit board is protected, and the phenomenon that the circuit board is damaged due to wading is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical components, and particularly relates to a controller and an engine system. Background Art

[0002] A controller is a common electrical component, which usually includes a housing and a circuit board installed inside the housing, and a waterproof breathable valve is installed on the housing.

[0003] Taking an engine controller as an example, affected by the flatness of the housing processing and the assembly angle, there is a risk of water accumulation around the waterproof breathable valve. Eventually, the accumulated water may flow into the housing through the gap between the waterproof breathable valve and the housing, thus affecting the performance of the circuit board.

[0004] Therefore, how to design a controller that can reduce the occurrence of the phenomenon that the circuit board is damaged due to water accumulation around the waterproof breathable valve has become an urgent technical problem in this field. Summary of the Utility Model

[0005] The purpose of the utility model is to at least solve the technical problem of how to reduce the damage of the circuit board caused by water accumulation around the waterproof breathable valve. This purpose is achieved by the following technical solutions:

[0006] In a first aspect, the utility model provides a controller, which includes: a circuit board; a housing, including an upper cover and a back plate connected to the upper cover, the upper cover and the back plate cooperate to form a receiving cavity for receiving the circuit board, the upper cover has an installation plane, a boss is provided on the installation plane, the boss protrudes relative to the installation plane, the boss is provided with an installation hole, and the receiving cavity communicates with the outside through the installation hole; and a waterproof breathable valve, installed in the installation hole.

[0007] In such a controller, since the installation hole is installed on the boss, and the boss protrudes from the installation plane, that is, the boss is at a higher position relative to the installation plane; on this premise, even if the housing is affected by factors such as the flatness of the housing processing and the assembly angle, resulting in water accumulation on the installation plane around the boss, due to the height difference, the accumulated water cannot flow to the periphery of the waterproof breathable valve. That is to say, it is difficult for the accumulated water to flow into the receiving cavity through the gap between the waterproof breathable valve and the housing (i.e., the gap between the waterproof breathable valve and the installation hole), thereby playing a protective role for the circuit board and effectively reducing the occurrence of the phenomenon that the circuit board is damaged due to water wading.

[0008] In some embodiments of the utility model, the controller further includes a protection device for preventing the waterproof breathable valve from being knocked.

[0009] In some embodiments of the present invention, the protection device includes a plurality of baffles, which are arranged on the boss at intervals around the circumference of the waterproof breathable valve, and there is a gap between every two adjacent baffles.

[0010] In some embodiments of the utility model, the protruding direction of the boss relative to the mounting plane is a first direction. Along the first direction, the distance between an end of the baffle away from the boss and the mounting hole is a first distance. The distance between an end of the waterproof breathable valve protruding from the mounting hole and the mounting hole is a second distance. The first distance is greater than the second distance.

[0011] In some embodiments of the present invention, a plurality of baffles are evenly spaced around the circumference of the waterproof breathable valve.

[0012] In some embodiments of the present invention, the controller further includes a connector, which is connected to the circuit board, and is used to realize electrical connection between the controller and other electrical components.

[0013] In some embodiments of the present invention, the containing chamber is coated with a heat-conducting material for dissipating heat from the circuit board.

[0014] In some embodiments of the utility model, one side of the upper cover close to the back plate constitutes the first inner surface of the accommodating chamber, and one side of the back plate close to the upper cover constitutes the second inner surface of the accommodating chamber; the first inner surface is provided with a first area for coating a thermally conductive material, and the first area is arranged corresponding to the position where the circuit board needs to dissipate heat; and / or, the second inner surface is provided with a second area for coating a thermally conductive material, and the second area is arranged corresponding to the position where the circuit board needs to dissipate heat.

[0015] In some embodiments of the utility model, the first inner surface is provided with a first groove, the first groove is recessed in a direction away from the second inner surface, and the first groove constitutes a first area; and / or, the second inner surface is provided with a second groove, the second groove is recessed in a direction away from the first inner surface, and the second groove constitutes a second area.

[0016] In a second aspect, the utility model provides an engine system, which includes an engine body and any one of the above-mentioned controllers, and the controller is signal-connected with an electrical component arranged on the engine body.

[0017] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Upon reading the following detailed description of the preferred embodiments, various other advantages and benefits will become apparent to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present utility model. Moreover, throughout the drawings, the same reference numerals are used to denote the same components. In the drawings:

[0019] Figure 1 is a schematic structural diagram of the controller provided by an embodiment of the present utility model;

[0020] Figure 2 is an exploded view of the structure of the controller provided by an embodiment of the present utility model;

[0021] Figure 3 is a schematic structural diagram of the controller provided by an embodiment of the present utility model from another angle;

[0022] Figure 4 is Figure 3 the enlarged view at A in

[0023] Figure 5 is a schematic structural diagram of the upper cover of the controller provided by an embodiment of the present utility model from another angle;

[0024] Figure 6 is a schematic structural diagram of the back panel of the controller provided by an embodiment of the present utility model from another angle.

[0025] The reference numerals are as follows:

[0026] 100, controller;

[0027] 1, circuit board;

[0028] 2, housing;

[0029] 21, upper cover; 211, mounting plane; 2111, boss; 212, first inner surface; 2121, first region; 22, back panel; 221, second inner surface; 2211, second region;

[0030] 3, waterproof breathable valve;

[0031] 4, baffle; 41, gap;

[0032] 5, connector;

[0033] 6, protective case. Detailed implementation manners

[0034] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure can be more thoroughly understood and the scope of the present disclosure can be completely conveyed to those skilled in the art.

[0035] It should be understood that the terms used herein are for the purpose of describing particular example embodiments only and are not intended to be limiting. Unless the context clearly dictates otherwise, the singular forms "a", "an", and "the" as used herein may also include the plural forms. The terms "comprising", "including", "containing", and "having" are inclusive and thus specify the presence of the stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring them to be performed in the particular order described or illustrated, unless an order of performance is expressly stated. It should also be understood that additional or alternative steps may be used.

[0036] Although the terms first, second, third, etc. may be used herein to describe multiple elements, components, regions, layers, and / or sections, these elements, components, regions, layers, and / or sections should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or section from another. Unless the context clearly indicates otherwise, terms such as "first", "second", and other numerical terms when used herein do not imply an order or sequence. Thus, the first element, component, region, layer, or section discussed below may be referred to as the second element, component, region, layer, or section without departing from the teachings of the example embodiments.

[0037] For ease of description, spatial relative relationship terms may be used in the text to describe the relationship of one element or feature shown in the figure with respect to another element or feature. These relative relationship terms are, for example, "inner", "outer", "inside", "outside", "below", "beneath", "above", "over", etc. Such spatial relative relationship terms are intended to include different orientations of the device during use or operation in addition to the orientations depicted in the figure. For example, if the device in the figure is flipped, an element described as "below" or "beneath" other elements or features will then be oriented as "above" or "over" other elements or features. Thus, the exemplary term "below" can include both upward and downward orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative relationship descriptors used in the text are accordingly interpreted.

[0038] Figure 1 Schematic diagram of the structure of the controller provided by the embodiment of the present utility model; Figure 2 Exploded view of the structure of the controller provided by the embodiment of the present utility model; As Figure 1 and Figure 2 shown, the embodiment of the present utility model provides a controller 100, and the controller 100 includes: a circuit board 1; a housing 2, including an upper cover 21 and a back plate 22 connected to the upper cover 21. The upper cover 21 and the back plate 22 cooperate to form a receiving chamber for receiving the circuit board 1. The upper cover 21 has a mounting plane 211, and a boss 2111 is provided on the mounting plane 211. The boss 2111 protrudes relative to the mounting plane 211, and the boss 2111 is provided with a mounting hole. The receiving chamber communicates with the outside through the mounting hole; and a waterproof breathable valve 3 is installed in the mounting hole.

[0039] Wherein, when the waterproof breathable valve 3 is assembled, it can be snap-fitted into the mounting hole in an irreversible (i.e., non-detachable) manner to ensure the reliability of the installation of the waterproof breathable valve 3. In addition, the upper cover 21 can be made by die-casting of aluminum alloy. Aluminum alloy has a light weight, low cost, and helps to improve the electromagnetic compatibility (EMC) performance of the controller 100. Moreover, the back plate 22 can be made by stamping of aluminum alloy. The stamping process has a lower cost and can reduce the overall weight of the controller 100.

[0040] It should be noted that the above-mentioned assembly methods, materials, and process means are only for illustration. Under actual working conditions, different working condition requirements should be taken as the standard, and no specific limitations are made.

[0041] In this embodiment, since the mounting hole is mounted on the boss 2111, and the boss 2111 protrudes from the mounting plane 211, that is, the boss 2111 is at a relatively high position relative to the mounting plane 211. On this premise, even if the housing 2 is affected by factors such as the flatness of the processing plane and the assembly angle, resulting in water accumulation in the mounting plane 211 around the boss 2111, due to the height difference in position, the accumulated water cannot flow to the periphery of the waterproof breather valve 3. That is to say, it is difficult for the accumulated water to flow into the accommodation chamber from the gap between the waterproof breather valve 3 and the housing 2 (i.e., the gap between the waterproof breather valve 3 and the mounting hole).

[0042] Therefore, in this way of mounting the waterproof control valve on the boss 2111 protruding relative to the mounting plane 211, this kind of controller 100 effectively reduces the occurrence of the phenomenon that the accumulated water around the waterproof control valve enters the accommodation chamber from the mounting hole, plays a protective role for the circuit board 1, and further effectively reduces the occurrence of the phenomenon that the circuit board 1 is damaged due to wading.

[0043] According to an optional embodiment of the present invention, the controller 100 further includes a protection device for preventing the waterproof breather valve 3 from being knocked.

[0044] In this embodiment, it is easy to understand that when the controller 100 works under actual working conditions, it often needs to be assembled with other electrical components or devices. Since the waterproof breather valve 3 is usually made of plastic, if the waterproof breather valve 3 is knocked, it is very easy to be damaged. Therefore, this embodiment provides a protection device to prevent the waterproof breather valve 3 from being knocked.

[0045] Figure 3 It is a schematic structural diagram of the controller provided by the embodiment of the present invention from another angle; Figure 4 is Figure 3 the enlarged view of part A in Figures 1 to 4 As shown, specifically, according to an optional embodiment of the present invention, the protection device includes a plurality of baffles 4, and the plurality of baffles 4 are arranged at intervals around the circumference of the waterproof breather valve 3 on the boss 2111, and there is a gap 41 between every two adjacent baffles 4.

[0046] In this embodiment, the way that the plurality of baffles 4 are arranged at intervals around the circumference of the waterproof breather valve 3 plays an effective protective role for the waterproof breather valve 3 in the circumferential direction. In addition, even if there is accumulated water on the boss 2111, since there is a gap 41 between every two adjacent baffles 4, the accumulated water will flow down along the gap 41 (i.e., from the boss 2111 to the mounting plane 211), effectively reducing the phenomenon that the accumulated water flows into the accommodation chamber from the mounting hole.

[0047] Therefore, this arrangement not only effectively protects the waterproof breathable valve 3, but also reduces the occurrence of water accumulated on the boss 2111 flowing into the receiving compartment through the mounting hole, further reducing the occurrence of damage to the circuit board 1 due to wading.

[0048] According to an optional embodiment of the utility model, the protruding direction of the boss 2111 relative to the mounting plane 211 is a first direction. Along the first direction, the distance between the end of the baffle 4 facing away from the boss 2111 and the mounting hole is a first distance, and the distance between the end of the waterproof breathable valve 3 protruding out of the mounting hole and the mounting hole is a second distance. The first distance is greater than the second distance.

[0049] Among them, you can refer to Figure 4 It is easy to understand that the first distance is greater than the second distance, that is, taking the plane where the mounting hole is located as the reference plane, the height of the baffle 4 is higher than that of the waterproof breathable valve 3.

[0050] In this embodiment, since the first distance is greater than the second distance, the baffle 4 can also protect the waterproof control valve above the waterproof control valve to prevent other devices from hitting the waterproof control valve from above, thereby improving the protection effect of the waterproof control valve.

[0051] According to an optional embodiment of the present utility model, a plurality of baffles 4 are evenly spaced around the circumference of the waterproof breathable valve 3 .

[0052] In this embodiment, since the multiple baffles 4 are evenly spaced around the circumference of the waterproof breathable valve 3, that is, the multiple gaps 41 are also evenly spaced around the circumference of the waterproof breathable valve 3, when water accumulates on the boss 2111, the accumulated water can flow down along the gaps 41 from all directions (i.e., the positions of different gaps 41).

[0053] Therefore, this arrangement can make the accumulated water on the boss 2111 flow from the boss 2111 to the mounting plane 211 more easily, further reducing the occurrence of damage to the circuit board 1 due to wading.

[0054] like Figure 1 and Figure 2 As shown, according to an optional embodiment of the present utility model, the controller 100 further includes a connector 5, which is connected to the circuit board 1, and the connector 5 is used to realize the electrical connection between the controller 100 and other electrical components.

[0055] In this embodiment, it is easy to understand that the connector 5 can be equipped with a protective shell 6 to protect the connector 5; when assembled, the connector 5 should be protruded from the receiving compartment to facilitate connection with other electrical components; the connector 5 and the protective shell 6 can be multiple, and the connector 5 and the protective shell 6 are arranged one by one, for example Figure 1 andFigure 2 In both cases, two connectors 5 and two protective cases 6 are provided.

[0056] In addition, at the connection between the protective case 6 of the connector 5 and the upper cover 21, and at the connection between the protective case 6 of the connector 5 and the backplane 22, sealing rubber strips should be provided to prevent the connector 5 from getting wet, further playing a role in protecting the connector 5.

[0057] According to an optional embodiment of the present invention, a heat-conducting material for dissipating heat from the circuit board 1 is coated in the accommodation chamber.

[0058] In this embodiment, the heat-conducting material can be selected according to actual needs. For example, thermal grease can be selected.

[0059] Figure 5 It is a schematic structural diagram of the upper cover of the controller provided by the embodiment of the present invention from another angle; Figure 6 It is a schematic structural diagram of the backplane of the controller provided by the embodiment of the present invention from another angle; As Figure 5 and Figure 6 shown, according to an optional embodiment of the present invention, the surface of the upper cover 21 close to the backplane 22 constitutes the first inner surface 212 of the accommodation chamber, and the surface of the backplane 22 close to the upper cover 21 constitutes the second inner surface 221 of the accommodation chamber; The first inner surface 212 is provided with a first area 2121 for coating the heat-conducting material, and the first area 2121 is arranged corresponding to the position where the circuit board 1 needs to dissipate heat; and / or, the second inner surface 221 is provided with a second area 2211 for coating the heat-conducting material, and the second area 2211 is arranged corresponding to the position where the circuit board 1 needs to dissipate heat.

[0060] In this embodiment, the heat-conducting material can be coated on the first area 2121 and / or the second area 2211. During assembly, the heat-conducting material is directly contacted with the position where the circuit board 1 needs to dissipate heat, so as to achieve the effect of dissipating heat from the circuit board 1.

[0061] Preferably, the heat-conducting material is coated on both the first area 2121 and the second area 2211 to make the heat dissipation of the circuit board 1 more uniform.

[0062] According to an optional embodiment of the present invention, the first inner surface 212 is provided with a first groove, the first groove is recessed in a direction away from the second inner surface 221, and the first groove constitutes the first area 2121; and / or, the second inner surface 221 is provided with a second groove, the second groove is recessed in a direction away from the first inner surface 212, and the second groove constitutes the second area 2211.

[0063] In this embodiment, the thermal conductive material is taken as an example of thermal conductive grease for illustration. The thermal conductive grease is a non-solid material with certain viscosity and fluidity. If the thermal conductive grease is directly coated on the first inner surface 212 and / or the second inner surface 221, when assembled, the thermal conductive grease is likely to be extruded and flow, thus affecting the heat dissipation effect of the circuit board 1.

[0064] Therefore, in this embodiment, a first groove is provided on the first inner surface 212 to form a first region 2121, and a second groove is provided on the second inner surface 221 to form a second region 2211.

[0065] Taking the first region 2121 as an example, since the first region 2121 is recessed with respect to the main plane of the first inner surface 212, the thermal conductive grease will not adhere to the circuit board 1 or the second inner surface 221 during assembly, thus avoiding the phenomenon that the thermal conductive grease flows due to extrusion. And due to the viscosity characteristics of the thermal conductive grease itself, it will not fall off from the first region 2121 either. Therefore, the heat dissipation effect of the circuit board 1 can be guaranteed.

[0066] The beneficial effect of the thermal conductive grease coated in the second region 2211 is the same as that of the first region 2121, and will not be elaborated here.

[0067] The embodiment of the present utility model also provides an engine system. The engine system includes an engine body and any one of the above-mentioned controllers 100, and the controller 100 is signal-connected to the electrical components provided on the engine body.

[0068] In this embodiment, the beneficial effect of the engine system is the same as that of any one of the above-mentioned controllers 100, that is, it can effectively reduce the occurrence of the phenomenon that the circuit board 1 is damaged due to water immersion. For the specific principle, refer to the above analysis and will not be elaborated here.

[0069] In addition, it is easy to understand that since the controller 100 of the engine system has the function of continuously monitoring and controlling the normal operation of the engine body, therefore, this engine system in this embodiment can improve the efficiency of the normal operation of the engine body while effectively reducing the occurrence of the phenomenon that the circuit board 1 is damaged due to water immersion.

[0070] The above is only a preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any change or replacement that can be easily thought of by those skilled in the art within the technical scope disclosed by the present utility model should be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.

Claims

1. A controller, characterized in that, Comprising: A circuit board; A housing including an upper cover and a back plate connected to the upper cover. The upper cover and the back plate cooperate to form a receiving chamber for receiving the circuit board. The upper cover has a mounting plane, and a boss is provided on the mounting plane. The boss protrudes relative to the mounting plane. The boss is provided with a mounting hole, and the receiving chamber communicates with the outside through the mounting hole; and A waterproof breathable valve mounted in the mounting hole.

2. The controller according to claim 1, wherein, The controller further includes a protection device for preventing the waterproof breathable valve from being bumped.

3. The controller according to claim 2, characterized in that, The protection device includes a plurality of baffles. The plurality of baffles are circumferentially spaced around the waterproof breathable valve on the boss, and there is a gap between every two adjacent baffles.

4. The controller according to claim 3, characterized in that, The protruding direction of the boss relative to the mounting plane is the first direction. Along the first direction, the distance between the end of the baffle facing away from the boss and the mounting hole is the first distance, and the distance between the end of the waterproof breathable valve protruding out of the mounting hole and the mounting hole is the second distance. The first distance is greater than the second distance.

5. The controller according to claim 3, characterized in that, The plurality of baffles are evenly circumferentially spaced around the waterproof breathable valve.

6. The controller according to claim 1, wherein The controller further includes a connector connected to the circuit board, and the connector is used to realize the electrical connection between the controller and other electrical components.

7. The controller according to any one of claims 1-6, characterized in that, The receiving chamber is coated with a heat-conducting material for dissipating heat from the circuit board.

8. The controller according to claim 7, wherein The surface of the upper cover close to the back plate constitutes the first inner surface of the receiving chamber, and the surface of the back plate close to the upper cover constitutes the second inner surface of the receiving chamber; The first inner surface is provided with a first area for coating the heat-conducting material, and the first area is correspondingly arranged with the position of the circuit board that needs to dissipate heat; and / or, The second inner surface is provided with a second area for coating the heat-conducting material, and the second area is correspondingly arranged with the position of the circuit board that needs to dissipate heat.

9. The controller according to claim 8, wherein The first inner surface is provided with a first groove recessed in a direction away from the second inner surface, and the first groove constitutes the first area; and / or, The second inner surface is provided with a second groove recessed in a direction away from the first inner surface, and the second groove constitutes the second area.

10. An engine system, characterized in that, Comprising an engine body and a controller according to any one of claims 1-9, and the controller is signal-connected to the electrical components provided on the engine body.

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