Circuit board shell, electric control module and electrical equipment

Abstract

The utility model relates to a circuit board shell, an electric control module and electrical equipment, the circuit board shell comprises a first shell, the first shell is internally provided with a glue pouring cavity and a fastener mounting cavity which are separated from each other, and the glue pouring cavity is internally provided with a supporting piece and a positioning piece; and a first connecting hole is formed in the fastener mounting cavity. According to the circuit board shell provided by the invention, the glue pouring cavity and the fastener mounting cavity which are separated from each other are arranged in the first shell, the supporting piece in the glue pouring cavity can be used for supporting the circuit board, and the positioning piece is used for realizing mounting and positioning of the circuit board in the glue pouring cavity. And the circuit board can be sealed after the sealant liquid is solidified in the sealant filling cavity. In the glue filling process, because the fastener mounting cavity and the glue filling cavity are separated from each other, the sealant liquid does not flow into the fastener mounting cavity and does not block the first connecting hole in the fastener mounting cavity, so that the circuit board shell has a waterproof function and can still be normally disassembled and assembled.

Description

Technical Field

[0001] The present application relates to the field of electric control technology, and in particular to a circuit board housing, an electric control module and an electrical device. Background Art

[0002] In the field of electronic control, a printed circuit board (PCB) is often used to realize the integrated installation and control of various electronic components. In order to prevent the circuit board from being damaged, a housing is often set outside the circuit board to protect the circuit board.

[0003] When the electronic control module is installed in a humid environment, if the electronic control module has no waterproof function, external water vapor can easily enter the shell and generate condensation water inside the shell, thereby soaking and corroding the circuit board in the shell, causing damage to the circuit board and the electronic control module cannot work properly.

[0004] In the prior art, the circuit board is packaged inside the shell by filling sealant into the shell. However, during the filling process, the sealant liquid easily flows into the fastener connection holes of the shell, resulting in the connection holes being blocked and the shell cannot be normally disassembled or assembled. Utility Model Content

[0005] The present application provides a circuit board housing, an electric control module and an electrical device to solve the technical problem in the prior art that the circuit board housing is easily blocked when glue is poured, and the housing cannot be disassembled.

[0006] In a first aspect, the present application provides a circuit board housing, comprising:

[0007] The first shell has a glue-filling cavity and a fastener-installing cavity separated from each other inside the first shell, a supporting piece and a positioning piece inside the glue-filling cavity, and a first connecting hole in the fastener-installing cavity.

[0008] Optionally, a first partition piece is provided in the first shell, and the first partition piece is connected to the inner wall of the first shell to form a fastener installation cavity.

[0009] Optionally, a plurality of support members are arranged in sequence along the circumference of the glue filling cavity.

[0010] Optionally, a limiting member is further provided inside the glue-filling cavity, and in the supporting direction of the supporting member, there is a first preset distance between the limiting member and the supporting member.

[0011] Optionally, a clamping piece is further provided inside the glue filling cavity, and the clamping piece is arranged on the circumferential edge of the glue filling cavity.

[0012] Optionally, the clamping member and the limiting member are arranged on two sides of the glue-filling cavity opposite to each other.

[0013] Optionally, a reinforcing piece connected to the clamping piece is further provided inside the glue-filling cavity.

[0014] Optionally, the circuit board housing further includes a second housing, and the first housing is connected to the second housing to form a closed cavity, and the potting cavity is located inside the closed cavity.

[0015] Optionally, the second housing is provided with a second connection hole corresponding to the first connection hole.

[0016] Optionally, the first housing is provided with a first clamping portion, and the second housing is provided with a second clamping portion, and the first clamping portion is clamped and connected to the second clamping portion.

[0017] Optionally, a positioning sunk platform is arranged inside the second housing, and one side of the first housing facing the second housing is in contact with the positioning sunk platform.

[0018] Optionally, a surrounding plate is arranged along the circumference of the positioning sunk platform on the second housing, the surrounding plate encloses the outside of the first housing, and there is a second preset distance between the surrounding plate and the outer wall of the first housing.

[0019] Optionally, the second housing is provided with a plurality of through grooves, and a second partition member is arranged between two adjacent through grooves.

[0020] In a second aspect, the present application provides an electronic control module, including the circuit board housing provided in the first aspect of the present application, and further including a circuit board, the circuit board is arranged inside the potting cavity, a plurality of support members support one side of the circuit board, and the circuit board has a positioning portion that is matched with the positioning member.

[0021] In a third aspect, the present application provides an electrical device, including the electronic control module provided in the second aspect of the present application.

[0022] The above technical solutions provided by the embodiments of the present application have the following advantages compared with the prior art:

[0023] For the circuit board housing provided by the embodiment of the present application, a potting cavity and a fastener installation cavity are arranged separately inside the first housing, and the circuit board can be arranged in the potting cavity. Support members and positioning members are arranged inside the potting cavity, the support members can be used to support the circuit board, and the positioning members are used to realize the installation and positioning of the circuit board inside the potting cavity. After the circuit board is installed in the potting cavity, a sealing glue liquid is injected into the potting cavity, so that the sealing glue liquid is evenly filled inside the potting cavity, and the circuit board can be sealed after the sealing glue liquid solidifies. During the potting process, since the fastener installation cavity and the potting cavity are separated from each other, the sealing glue liquid will not flow into the fastener installation cavity, and will not block the first connection hole in the fastener installation cavity, so that the circuit board housing has a waterproof function while still being able to be disassembled and assembled normally. Description of the Drawings

[0024] The accompanying drawings herein are incorporated into and constitute a part of this specification, showing embodiments consistent with the present application, and are used together with the specification to explain the principles of the present application.

[0025] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the accompanying drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained based on these drawings.

[0026] One or more embodiments are exemplarily illustrated by the pictures in the corresponding accompanying drawings. These exemplary illustrations do not limit the embodiments. Elements with the same reference numerals in the accompanying drawings are represented as similar elements, unless otherwise stated, and the drawings in the accompanying drawings do not constitute a proportional limitation.

[0027] Figure 1 Schematic structural diagram of the first housing provided for the embodiment of the present application;

[0028] Figure 2 Cross-section of the first housing provided for the embodiment of the present application Figure 1 ;

[0029] Figure 3 Top view of the first housing provided for the embodiment of the present application;

[0030] Figure 4 Provided for the embodiment of the present application Figure 3 Detail enlarged view of part A therein;

[0031] Figure 5 Cross-section of the first housing provided for the embodiment of the present application Figure 2 ;

[0032] Figure 6 Provided for the embodiment of the present application Figure 5 Detail enlarged view of part B therein;

[0033] Figure 7 Installation schematic diagram of the circuit board and the first housing provided for the embodiment of the present application Figure 1 ;

[0034] Figure 8 Provided for the embodiment of the present application Figure 7 Detail enlarged view of part C therein;

[0035] Figure 9 Installation schematic diagram of the circuit board and the first housing provided for the embodiment of the present application Figure 2 ;

[0036] Figure 10Schematic diagram of the disassembly of the circuit board and the first housing provided by the embodiment of the present application;

[0037] Figure 11 Schematic diagram of the structure of the second housing provided by the embodiment of the present application;

[0038] Figure 12 Top view of the second housing provided by the embodiment of the present application;

[0039] Figure 13 Cross-sectional view of the second housing provided by the embodiment of the present application;

[0040] Figure 14 Provided by the embodiment of the present application Figure 13 Detail enlarged view of part D in

[0041] Figure 15 Schematic diagram of the structure of the electronic control module provided by the embodiment of the present application;

[0042] Figure 16 Cross-sectional view of the electronic control module provided by the embodiment of the present application;

[0043] Figure 17 Provided by the embodiment of the present application Figure 16 Detail enlarged view of part E in

[0044] Explanation of reference numerals:

[0045] 1. First housing; 11. First connection hole; 12. Support member; 13. Positioning member; 14. First partition member; 15. Limiting member; 16. Clamping member; 17. Reinforcing member; 18. First clamping portion;

[0046] 2. Second housing; 21. Second connection hole; 22. Second clamping portion; 23. Positioning sink; 24. Enclosure; 25. Through groove; 26. Second partition member;

[0047] 3. Circuit board; 31. Positioning portion; 32. Insertion piece. Detailed implementation manners

[0048] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the protection scope of the present application.

[0049] The following disclosure provides many different embodiments or examples for implementing different structures of the present application. To simplify the disclosure of the present application, components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present application. In addition, the present application may repeat reference numerals and / or letters in different examples. Such repetition is for the purpose of simplification and clarity, and does not in itself indicate the relationship between various embodiments and / or settings discussed.

[0050] For ease of description, spatially relative relationship terms may be used in the text to describe the relative positional relationship or movement of one element or feature shown in the figure relative to another element or feature. These relative relationship terms are, for example, "inside", "outside", "inner side", "outer side", "below", "beneath", "above", "over", "front", "rear", etc. Such spatially relative relationship terms are intended to include different orientations of the device in use or operation other than the orientations depicted in the figure. For example, if the device in the figure undergoes a position flip or attitude change or change in motion state, then these directional indications will change accordingly. For example, an element described as "below other elements or features" or "beneath other elements or features" will then be oriented as "above other elements or features" or "over other elements or features". Therefore, the exemplary term "below" can include both upper and lower orientations. The device can be oriented otherwise (rotated 90 degrees or in other directions) and the spatially relative relationship descriptors used in the text are interpreted accordingly.

[0051] To solve the technical problem in the prior art that when the circuit board housing is potted, it is easy to cause the fastening hole to be blocked, and the disassembly and assembly of the housing cannot be realized, the present application provides a circuit board housing, an electronic control module and an electrical equipment, which can isolate the potting cavity and the fastening member installation cavity. While realizing the sealing and waterproofing of the circuit board 3 through potting, it is possible to prevent the sealing glue from flowing into the fastening member installation cavity and affecting the normal disassembly and assembly of the circuit board housing.

[0052] Please refer to Figures 1 to 17 , in the first aspect of the embodiment of the present application, a circuit board housing is provided, including a first housing 1. Inside the first housing 1, there are a potting cavity and a fastening member installation cavity that are separated from each other, as Figure 1 shown. The circuit board 3 is disposed in the potting cavity. Inside the potting cavity, there are a support member 12 and a positioning member 13. The support member 12 can be used to support the circuit board 3, and the positioning member 13 is used to realize the installation and positioning of the circuit board 3 inside the potting cavity, as Figure 7 , Figure 8 , Figure 9 and Figure 10As shown, a first connection hole 11 is provided in the fastener installation cavity, which can be used to set fasteners such as screws and bolts to facilitate the assembly between the first housing 1 and other components. For example, Figure 1 , Figure 3 , Figure 11 and Figure 15 as shown.

[0053] It should be noted that in this application, the circuit board 3 is installed and positioned by the positioning member 13 in the first housing 1, and then the circuit board 3 is placed on the support member 12, so that the circuit board 3 is supported and arranged inside the potting cavity. Then, the sealing glue liquid is injected into the potting cavity, so that the sealing glue liquid is evenly filled inside the potting cavity. After the sealing glue liquid solidifies, the circuit board 3 can be sealed. During the potting process, since the fastener installation cavity and the potting cavity are separated from each other, the sealing glue liquid will not flow into the fastener installation cavity, and will not block the first connection hole 11 in the fastener installation cavity, enabling the circuit board housing to have a waterproof function while still being able to be disassembled and assembled normally.

[0054] In some embodiments of this application, please refer to Figure 1 and Figure 3 . A first partition member 14 is provided in the first housing 1. The first partition member 14 is connected to the inner wall of the first housing 1 to form a fastener installation cavity. Through the first partition member 14, the space inside the first housing 1 is divided, thereby realizing the partition between the potting cavity and the fastener installation cavity inside the first housing 1.

[0055] To avoid the setting of the fastener installation cavity affecting the size of the potting cavity, resulting in limited size of the circuit board 3 that can be accommodated inside the potting cavity, it is preferably to set the fastener installation cavity in the corner area of the first housing 1. As a specific embodiment of this application, two first partition members 14 are provided in the diagonal area of the first housing 1, and each fastener installation cavity is provided with a first connection hole 11, which can not only achieve uniform and stable connection between the first housing 1 and other components, but also reduce the influence of the fastener installation cavity set inside the first housing 1 on the size of the installation space (i.e., the potting cavity) of the circuit board 3. At this time, the first partition member 14 can be Figure 1 and Figure 3 the L-shaped partition rib plate shown, or an arc-shaped partition rib plate. By connecting the L-shaped partition rib plate or the arc-shaped partition rib plate to the inner side wall of the first housing 1, a fastener installation cavity can be formed inside the first housing 1.

[0056] In the above embodiments, the support member 12 may be an integral support structure arranged in a ring along the circumference of the potting cavity, or may be a plurality of independent support structures arranged in sequence along the circumference of the potting cavity, both of which can support the circuit board 3. In order to reduce the material consumption of the support member 12 and reduce the space occupancy rate of the support member 12 inside the potting cavity, it is preferably to use a plurality of independent support structures to support the circuit board 3.

[0057] In some embodiments of the present application, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 9 and Figure 10 , a plurality of support members 12 are arranged in sequence along the circumference of the potting cavity, which can achieve uniform circumferential support for the circuit board 3. At this time, the support member 12 may be a support rib, a support column or a support plate and other structures. Specifically, the support member 12 may be arranged around the potting cavity, or may be arranged only on the opposite sides of the circumference of the potting cavity, both of which can achieve uniform support for the circuit board 3.

[0058] As a specific embodiment of the present application, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 9 and Figure 10 , a plurality of support members 12 are respectively arranged on the left and right sides of the circumference of the potting cavity, which can be used to support the left and right sides of the circuit board 3. The heights of the plurality of support members 12 are all H1, which can make the circuit board 3 be placed horizontally in the first housing 1, and the height H1 of the support member 12 is greater than the height of the electronic components at the bottom of the circuit board 3 extending downward. As shown in Figure 9 and Figure 10 , it can prevent the electronic components at the bottom of the circuit board 3 from directly contacting the bottom of the potting cavity, resulting in the circuit board 3 being lifted and the support member 12 being unable to support the circuit board 3.

[0059] In some embodiments of the present application, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 9 and Figure 10 , a limiting member 15 is further provided inside the potting cavity to limit the circuit board 3 inside the potting cavity and prevent the circuit board 3 from shaking inside the first housing 1. In the support direction of the support member 12, there is a first preset distance L1 between the limiting member 15 and the support member 12, so as to facilitate the insertion of the board body of the circuit board 3 between the support member 12 and the limiting member 15. Specifically, the first preset distance L1 is greater than the thickness of the board body of the circuit board 3, and the difference between the first preset distance L1 and the thickness of the board body of the circuit board 3 is 0-0.5 mm. Ensure that the board body of the circuit board 3 can be inserted while preventing the circuit board 3 from shaking between the support member 12 and the limiting member 15.

[0060] Specifically, please refer to Figure 2 , Figure 9 and Figure 10 , when the supporting direction of the support member 12 is the vertical direction, the support member 12 supports the lower side of the board body of the circuit board 3. At this time, the height of the limiting member 15 from the bottom of the potting cavity is H2, and the first preset distance L1 = H2 - H1. In the vertical direction, the support member 12 restricts the downward movement of the board body of the circuit board 3, and the limiting member 15 restricts the upward movement of the board body of the circuit board 3, thereby preventing the overall circuit board 3 from shaking in the vertical direction.

[0061] In some embodiments of the present application, the limiting member 15 can be structures such as limiting ribs, limiting columns or limiting plates, all of which can achieve the purpose of the present application.

[0062] As a specific embodiment of the present application, the limiting member 15 is a limiting plate provided on one side of the potting cavity. The limiting plate is horizontally arranged, and one side of the limiting plate is connected to the inner side wall of the first housing 1, which can prevent the setting of the limiting member 15 from affecting the installation of the circuit board 3 inside the potting cavity.

[0063] In the above embodiment, in order to achieve the uniform filling of the sealing colloid inside the potting cavity and to achieve the avoidance of the limiting member 15 during the installation of the circuit board 3, there are horizontal gaps between the circumferential inner wall of the potting cavity and the circumferential edge of the circuit board 3. The existence of these horizontal gaps will cause the circuit board 3 to be prone to shaking in the horizontal direction after the assembly is completed.

[0064] To solve the above problems, in some embodiments of the present application, please refer to Figure 1 , Figure 3 , Figure 5 and Figure 6 , a clamping member 16 is further provided inside the potting cavity. The clamping member 16 is arranged at the circumferential edge of the potting cavity and can be used to clamp the circumferential edge of the circuit board 3 to prevent the circuit board 3 from shaking in the horizontal direction.

[0065] In some embodiments of the present application, please refer to Figure 3 , Figure 7 , Figure 9 and Figure 10 , since the positioning member 13 can achieve the front-back direction limiting of the circuit board 3 when cooperating with the circuit board 3 (taking the up-down direction in Figure 3 as the front-back direction in the horizontal plane), therefore, only by using the clamping member 16 to achieve the left-right direction limiting of the circuit board 3 can the circuit board 3 be prevented from shaking in the horizontal direction. At this time, the clamping member 16 and the limiting member 15 are oppositely arranged on both sides of the potting cavity (i.e., Figure 3On the left and right sides), when the circuit board 3 is inserted between the limiting member 15 and the supporting member 12, the right side of the circuit board 3 can be limited by the clamping member 16, avoiding large fluctuations of the circuit board 3 in the left - right direction, and improving the installation stability of the circuit board 3 inside the potting cavity. Specifically, the clamping height H4 of the clamping member 16 = H2, so that while the clamping member 16 horizontally limits the circuit board 3, it can also vertically limit the circuit board 3 together with the limiting member 15.

[0066] In some embodiments of the present application, please refer to Figure 3 、 Figure 4 、 Figure 5 and Figure 6 There is also a reinforcing member 17 connected to the clamping member 16 inside the potting cavity, which can be used to enhance the structural strength of the clamping member 16 and avoid fatigue fracture of the clamping member 16 during the clamping and disassembly process. Specifically, the reinforcing member 17 is a reinforcing rib connecting the clamping member 16 and the inner wall of the potting cavity.

[0067] In some embodiments of the present application, please refer to Figure 11 、 Figure 13 、 Figure 15 and Figure 16 The circuit board housing further includes a second housing 2. The first housing 1 is connected to the second housing 2 to form a closed cavity, and the potting cavity is located inside the closed cavity, which can protect the potted circuit board 3 through the closed cavity.

[0068] In some embodiments of the present application, please refer to Figure 3 、 Figure 7 、 Figure 11 、 Figure 12 and Figure 15 The second housing 2 is provided with a second connection hole 21 corresponding to the first connection hole 11, so that the fastener can pass through the first connection hole 11 and the second connection hole 21 in sequence to realize the detachable connection between the first housing 1 and the second housing 2.

[0069] Specifically, the first connection hole 11 is a threaded hole, and the second connection hole 21 can be a threaded hole or a through - hole, both of which can achieve the purpose of the present application.

[0070] In some embodiments of the present application, please refer to Figure 1 、 Figure 2 、 Figure 11 、 Figure 14 、 Figure 16 and Figure 17, a first engaging portion 18 is provided on the first housing 1, and a second engaging portion 22 is provided on the second housing 2. The first engaging portion 18 and the second engaging portion 22 are engaged and connected. While realizing the rapid connection of the first housing 1 and the second housing 2, the assembly positioning between the first housing 1 and the second housing 2 can be synchronously realized, so as to facilitate the alignment between the first connection hole 11 and the second connection hole 21, and then the first housing 1 and the second housing 2 are further fixedly connected by arranging fasteners in the first connection hole 11 and the second connection hole 21.

[0071] As a specific embodiment of the present application, the first engaging portion 18 is a buckle provided on both sides of the first housing 1, and the second engaging portion 22 is a slot provided on both sides of the second housing 2, and the cross-section of the slot is in an inverted triangular shape, as Figure 17 shown.

[0072] In the embodiment of the present application, please refer to Figure 11 , Figure 13 , Figure 14 . A positioning sunk platform 23 is provided inside the second housing 2, and one side of the first housing 1 facing the second housing 2 is in contact with the positioning sunk platform 23. While realizing the assembly positioning of the first housing 1 and the second housing 2, it can prevent the first housing 1 from being excessively embedded in the second housing 2. The end surface of the first housing 1 on the side facing the second housing 2 is in contact with the positioning sunk platform 23, which can increase the circumferential contact area between the two, and is beneficial to improving the sealing performance between the first housing 1 and the second housing 2.

[0073] In some embodiments of the present application, please refer to Figure 11 , Figure 13 , Figure 16 and Figure 17 . A surrounding plate 24 is provided on the second housing 2 along the circumference of the positioning sunk platform 23. The surrounding plate 24 surrounds the outside of the first housing 1, so that the first housing 1 is completely embedded in the second housing 2, which can protect the first housing 1 and the circuit board 3 inside it. There is a second preset distance L2 between the surrounding plate 24 and the outer wall of the first housing 1, so as to form a disassembly groove between the surrounding plate 24 and the outer wall of the first housing 1 for inserting a disassembly tool. By applying pressure towards the middle of the first housing 1 to the first engaging portion 18 through the disassembly tool, it is convenient to release the engagement between the first engaging portion 18 and the second engaging portion 22.

[0074] In some embodiments of the present application, please refer to Figure 11 , Figure 12 and Figure 15, a plurality of through slots 25 are provided on the second housing 2, and the plurality of through slots 25 are arranged in one-to-one correspondence with the plurality of inserts 32 on the circuit board 3, so as to facilitate the plurality of inserts 32 on the circuit board 3 to extend out of the circuit board housing and be connected to external wiring terminals. A second partition member 26 is provided between two adjacent through slots 25, which can be used to isolate the inserts 32 in adjacent through slots 25, avoid electrical conduction between adjacent inserts 32, and improve electrical safety. Specifically, the second partition member 26 is a partition board, and the plurality of through slots 25 and the plurality of partition boards are evenly and alternately arranged on the second housing 2, as Figure 12 shown.

[0075] In some embodiments of the present application, both the first housing 1 and the second housing 2 are injection molded parts. The first connection hole 11, the support member 12, the positioning member 13, the first partition member 14, the limiting member 15, the reinforcing member 17, and the first clamping portion 18 on the first housing 1 are all integrally structured with the first housing body. The second connection hole 21, the second clamping portion 22, the positioning sink 23, the surrounding plate 24, the through slot 25, and the second partition member 26 on the second housing 2 are all integrally structured with the second housing body, which can reduce the manufacturing difficulty of the first housing 1 and the second housing 2 and improve the connection strength between components.

[0076] Please refer to Figure 15 , Figure 16 and Figure 17 , an electronic control module provided in the second aspect of the embodiments of the present application includes the circuit board housing in the above embodiments, and further includes a circuit board 3. The circuit board 3 is arranged inside the potting cavity, and a plurality of support members 12 support one side of the circuit board 3. The circuit board 3 has a positioning portion 31 that is matched with the positioning member 13, which can realize the positioning and installation of the circuit board 3 inside the circuit board housing.

[0077] In some embodiments of the present application, the positioning member 13 is a positioning rib provided on one side of the potting cavity, and the positioning portion 31 is a positioning groove opened on one side of the board body of the circuit board 3, and the opening of the positioning groove faces the positioning member 13. In order to realize the cooperation between the positioning member 13 and the positioning groove, the height H3 of the positioning member 13 is greater than the height H1 of the support member 12, so that the positioning member 13 can be embedded into the positioning groove of the board body of the circuit board 3, as Figure 7 and Figure 8 shown.

[0078] In some embodiments of the present application, in order to facilitate the disassembly of the circuit board 3, the tooth width of the clamping member 16 is defined as W1, as Figure 6 shown. When the circuit board 3 is in a horizontal state, the distance between the positioning member 13 and the positioning portion 31 in the left-right direction is defined as W2, as Figure 8As shown. Preferably, W1≥W2, which can reduce the degree of prying open of the clamping member 16 during disassembly and can also ensure the limiting effect of the clamping member 16 on the circuit board 3 during normal clamping.

[0079] When installing the circuit board 3, please refer to Figure 9 , where the position state of the circuit board 3 before installation is indicated by a dotted line and the state after installation is indicated by a solid line. First, obliquely insert the circuit board 3 between the support member 12 and the limiting member 15 on the left side of the first housing 1 along the insertion direction, and make the positioning portion 31 of the circuit board 3 engage with the positioning member 13. Then, rotate the circuit board 3 clockwise according to the placement direction, so that the circuit board 3 presses the clamping member 16. After the clamping member 16 clamps the circuit board 3, the assembly of the circuit board 3 is completed. At this time, the right side of the circuit board 3 is in contact with the clamping member 16, and there is a distance W2 between the positioning portion 31 on the left side of the circuit board 3 and the positioning member 13.

[0080] When disassembling the circuit board 3, please refer to Figure 10 , where the state of the circuit board 3 before disassembly is indicated by a solid line and the position state after disassembly is indicated by a dotted line. Since there is a distance W2 between the positioning portion 31 on the left side of the circuit board 3 and the positioning member 13, first move the circuit board 3 closer to the side where the positioning member 13 is located (i.e., the left side) along the moving direction to increase the distance between the circuit board 3 and the clamping member 16. Then, pry the clamping member 16 to the right along the disassembly direction to release the limit of the clamping member 16 on the circuit board 3. Finally, rotate the circuit board 3 counterclockwise along the removal direction to remove the circuit board 3 from the potting cavity of the first housing 1.

[0081] It should be noted that when repairing the potted electronic control module, it is necessary to first remove the solidified sealant on the circuit board 3 and then remove the circuit board 3 from the first housing 1 according to the above method.

[0082] In some embodiments of the present application, the electronic control module is a protection module of the compressor, and its main function is to protect the compressor from accidents such as motor burnout when in an abnormal situation. Condensate will be generated during the operation of the compressor, and the existing compressor protection module housing has problems such as cumbersome installation, difficult disassembly and maintenance, and no waterproof function. Once the protection module is damaged, it will cause the compressor to be scrapped. After the circuit board 3 is assembled in the electronic control module of the present application, a sealant liquid can be potted in the potting cavity of the first housing 1 to achieve the sealed packaging of the circuit board 3, so that the electronic control module of the present application has a waterproof function. At the same time, through the first clamping portion 18 and the second clamping portion 22, the first connection hole 11 and the second connection hole 21, the disassembly and assembly between the first housing 1 and the second housing 2 can be quickly realized, making the electronic control module of the present application have the advantages of simple disassembly and assembly and convenient maintenance. When used as a protection module of the compressor, it can improve the waterproof performance and service life of the compressor protection module.

[0083] The third aspect of the embodiments of the present application provides an electrical device, including the electrical control module in the above embodiments. The electrical device can be controlled through the electrical control module to ensure the normal operation of the electrical device. Specifically, the electrical device can be a refrigeration device such as an air conditioner or a refrigerator.

[0084] Please refer to Figures 1 to 17 , in some embodiments of the present application, the assembly method of the above electrical control module is as follows:

[0085] Step 1: Horizontally place the first housing 1 so that the opening of the potting cavity faces upward;

[0086] Step 2: Align the positioning portion 31 of the circuit board 3 with the positioning member 13, insert one side of the circuit board 3 between the limiting member 15 and the supporting member 12, and then limit the other side of the circuit board 3 through the clamping member 16 so that the circuit board 3 is horizontally arranged on a plurality of supporting members 12;

[0087] Step 3: Inject the sealing glue liquid into the potting cavity to seal the circuit board 3. During the potting process, make the insertion piece 32 of the circuit board 3 extend out of the liquid level of the sealing glue liquid;

[0088] Step 4: Cover the second housing 2 on the first housing 1 so that a plurality of insertion pieces 32 correspondingly extend out from a plurality of through slots 25. When the positioning sinking platform 23 inside the first housing 1 contacts the second housing 2, the first clamping portion 18 and the second clamping portion 22 are clamped;

[0089] Step 5: Insert the fasteners into the second connection holes 21 and the first connection holes 11 in sequence to realize the fixed connection between the first housing 1 and the second housing 2.

[0090] It should be understood that the terms used in the text are only for the purpose of describing specific example embodiments and are not intended to be restrictive. Unless the context clearly indicates otherwise, the singular forms "a", "an", and "the" as used in the text may also include the plural forms. The terms "include", "comprise", "contain", and "have" 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 their combinations. The method steps, processes, and operations described in the text are not to be construed as necessarily requiring them to be performed in the particular order described or illustrated, unless the execution order is explicitly stated. It should also be understood that additional or alternative steps may be used.

[0091] 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 region, layer, or section. Unless the context clearly indicates otherwise, terms such as "first", "second", and other numerical terms do not imply an order or sequence when used herein. 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 exemplary embodiments.

[0092] The foregoing are only specific embodiments of the present application, enabling those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but rather will conform to the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A circuit board housing, characterized in that: include: A first shell (1), wherein a glue pouring cavity and a fastener installation cavity separated from each other are provided inside the first shell (1), a support member (12) and a positioning member (13) are provided inside the glue pouring cavity; and a first connecting hole (11) is provided in the fastener installation cavity.

2. The circuit board housing according to claim 1, characterized in that: A first partition piece (14) is provided in the first shell (1), and the first partition piece (14) is connected to the inner wall of the first shell (1) to form the fastener installation cavity.

3. The circuit board housing according to claim 1, characterized in that: The plurality of support members (12) are arranged in sequence along the circumference of the glue-filling cavity.

4. The circuit board housing according to claim 1, characterized in that: A limiting member (15) is also provided inside the glue-filling cavity, and in the supporting direction of the supporting member (12), a first preset distance exists between the limiting member (15) and the supporting member (12).

5. The circuit board housing according to claim 4, characterized in that: A clamping piece (16) is also provided inside the glue pouring cavity, and the clamping piece (16) is arranged on the circumferential edge of the glue pouring cavity.

6. The circuit board housing according to claim 5, characterized in that: The clamping member (16) and the limiting member (15) are arranged on two sides of the glue-filling cavity opposite to each other.

7. The circuit board housing according to claim 5, characterized in that: A reinforcing piece (17) connected to the clamping piece (16) is also provided inside the glue-filling cavity.

8. The circuit board housing according to any one of claims 1 to 7, characterized in that: It also comprises a second shell (2), wherein the first shell (1) and the second shell (2) are connected to form a closed cavity, and the glue-filling cavity is located inside the closed cavity.

9. The circuit board housing according to claim 8, characterized in that: The second shell (2) is provided with a second connection hole (21) corresponding to the first connection hole (11).

10. The circuit board housing according to claim 8, characterized in that: The first shell (1) is provided with a first clamping portion (18), the second shell (2) is provided with a second clamping portion (22), and the first clamping portion (18) is clamped and connected with the second clamping portion (22).

11. The circuit board housing according to claim 8, characterized in that: A positioning sink (23) is provided inside the second shell (2), and a side of the first shell (1) facing the second shell (2) is arranged in contact with the positioning sink (23).

12. The circuit board housing according to claim 11, characterized in that: The second shell (2) is provided with a surrounding plate (24) along the circumference of the positioning sink (23); the surrounding plate (24) surrounds the outside of the first shell (1); and a second preset distance exists between the surrounding plate (24) and the outer wall of the first shell (1).

13. The circuit board housing according to claim 8, characterized in that: The second shell (2) is provided with a plurality of through slots (25), and a second partition member (26) is provided between two adjacent through slots (25).

14. An electric control module, comprising the circuit board housing according to any one of claims 1 to 13, characterized in that: It also comprises a circuit board (3), wherein the circuit board (3) is arranged inside the glue-filling cavity, a plurality of the support members (12) are supported on one side of the circuit board (3), and the circuit board (3) has a positioning portion (31) arranged to match the positioning member (13).

15. An electrical device, characterized in that: Comprising the electric control module as claimed in claim 14.

Images