Clamp assembly of circuit board, electric appliance box assembling assembly and assembling method of electric appliance box assembling assembly

Abstract

The invention provides a clamp assembly of a circuit board, an electric appliance box assembling assembly and an assembling method thereof.The clamp assembly of the circuit board comprises a clamp body, a clamping part and a positioning part, one end of the clamping part is connected to the clamp body, and the other end of the clamping part extends out in the direction away from the clamp body; one end of the positioning part is also connected to the clamp body, the other end of the positioning part extends out in the direction away from the clamp body, the clamping part is opposite to a capacitor on a circuit board so that the capacitor can be clamped, and meanwhile the positioning part is opposite to a positioning hole in the circuit board so that the positioning part can be inserted into the positioning hole. Therefore, more than two positions of the circuit board in the assembling process can be positioned. According to the invention, the positioning effect of more than two positions between the clamp assembly and the circuit board can be formed, so that the circuit board and the electric appliance box are accurately aligned, the assembly and position correction process is automatic, and the assembly efficiency of assembling the circuit board on the electric appliance box is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit boards, and particularly to a fixture assembly for a circuit board, an electrical box assembly component and an assembly method thereof. Background Art

[0002] In the assembly process of electrical box components, the first step is to apply heat dissipation paste to the screw hole area of the electrical box assembly; the second step is to assemble the circuit board into the electrical box assembly; the third step is to align and adjust the fixing holes of the components on the circuit board with the screw holes of the electrical box assembly; the fourth step is to drive screws to lock and fix the circuit board and the electrical box assembly. The higher the coaxiality between the fixing holes of the components on the circuit board and the screw holes of the electrical box assembly, the fewer screw driving failures. However, there are relatively large errors in the second step, and the third step is required for alignment adjustment. Moreover, the second step will cause the heat dissipation paste to be extruded, resulting in different degrees of overflow and blockage of the holes by the heat dissipation paste (the heat dissipation paste enters the fixing holes of the components on the circuit board and the screw holes of the electrical box assembly). In the third step, alignment adjustment needs to be carried out according to the shapes of the fixing holes and the screw holes. Due to the problem of heat dissipation paste blocking the holes, it is difficult to judge the alignment situation, resulting in an error in the coaxiality between the fixing holes of the components on the circuit board and the screw holes of the electrical box assembly. The greater this error, the higher the defective rate of screw driving in the fourth step and the worse the reliability.

[0003] The existing method is to use manual assembly and alignment adjustment in the second and third steps. For the situation where the coaxiality cannot be judged from the appearance due to the heat dissipation paste blocking the holes, manual use of a fine probe to probe and remove the heat dissipation paste is adopted, and finally the coaxiality is confirmed and adjusted. This solution has problems such as low efficiency, high requirements for operators, poor reliability, and inability to achieve automation.

[0004] Due to the technical problems such as low assembly efficiency of the circuit board and the electrical box in the prior art, the present invention researches and designs a fixture assembly for a circuit board, an electrical box assembly component and an assembly method thereof. Summary of the Invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the defect of low assembly efficiency of the circuit board and the electrical box in the prior art, and thus provide a fixture assembly for a circuit board, an electrical box assembly component and an assembly method thereof.

[0006] To solve the above problems, the present invention provides a fixture assembly for a circuit board, which includes:

[0007] A fixture body, a clamping portion, and a positioning portion. One end of the clamping portion is connected to the fixture body, and the other end extends away from the fixture body. One end of the positioning portion is also connected to the fixture body, and the other end extends away from the fixture body. The clamping portion faces a capacitor on the circuit board to clamp the capacitor, and at the same time, the positioning portion faces a positioning hole on the circuit board to be inserted into the positioning hole, so as to form the positioning of two or more positions of the circuit board during the assembly process.

[0008] In some embodiments,

[0009] The positioning portion can enter the positioning hole by a first length to achieve the positioning between the fixture assembly and the circuit board, and the positioning portion can enter the positioning hole by a second length to position and assemble the circuit board onto the electrical box; the first length is the length of the positioning portion inserted below the upper end face of the positioning hole, and the second length is the length of the positioning portion inserted below the upper end face of the positioning hole, and the first length is less than the second length.

[0010] In some embodiments,

[0011] The first length of the positioning portion entering the positioning hole is a partial length of the positioning portion, that is, a semi-entering state, and the second length of the positioning portion entering the positioning hole is the entire length of the positioning portion, that is, a full-entering state.

[0012] In some embodiments,

[0013] The fixture body is a plate-like structure, including a first body and a second body. The positioning portion is arranged on the first body, and the clamping portion is arranged on the second body. The first body and the second body are connected as a whole.

[0014] In some embodiments,

[0015] The first body is a rectangular plate structure, having a first end and a second end along its length direction. At least one positioning portion is arranged at the first end of the first body, and at least one positioning portion is arranged at the second end of the first body. One end of the positioning portion is connected to the first body, and the other end extends in the first direction;

[0016] The second body is connected at a position between the first end and the second end. One end of the second body is connected to the first body, and the other end extends in the second direction. One end of the clamping portion is connected to the second body, and the other end extends in the first direction. The first direction and the second direction are different directions.

[0017] In some embodiments,

[0018] The clamping part is arranged at the end of the second body away from the first body; the second body is also in a plate-like structure, which has a connecting section connected to the first body and a clamping section provided with the clamping part. The connecting section is a rectangular plate with two parallel and opposite side faces. The projection of the clamping section in its plate surface is an arc-shaped structure or a circular structure. The connecting section is connected between the first body and the clamping section.

[0019] In some embodiments,

[0020] The positioning part is a pin. One end of the pin is connected to the first body, and the other end forms a tip towards the direction away from the first body so as to be partially or fully inserted into the positioning hole on the circuit board.

[0021] In some embodiments,

[0022] The clamping part is in the structure of clamping claws. There are at least two clamping claws. At least two clamping claws enclose an annular structure, and adjacent two clamping claws are arranged at intervals in the circumferential direction. The clamping claws are elastic structures. The capacitor can be inserted into the space between adjacent two clamping claws. When the capacitor is inserted into the space between adjacent two clamping claws, adjacent two clamping claws elastically open and form an elastic clamping force to clamp the capacitor. When the capacitor is withdrawn from the space between adjacent two clamping claws, adjacent two clamping claws contract to the original state through the elastic restoring force.

[0023] The present invention also provides an electrical box assembly component, which includes the fixture assembly of the circuit board described above, and also includes a circuit board and an electrical box.

[0024] The circuit board is provided with a positioning hole and a capacitor. The clamping part is opposite to the capacitor to be able to clamp the capacitor, and at the same time the positioning part is opposite to the positioning hole to be able to be inserted into the positioning hole.

[0025] In some embodiments,

[0026] The electrical box is in a trough structure, which can accommodate the circuit board therein. A buckle is arranged on the trough wall on one side of the electrical box, and a clamping groove is arranged on the trough wall on the other side of the electrical box, so that the buckle and the clamping groove are arranged oppositely.

[0027] The first side face of the circuit board adjacent to and opposite to the positioning hole is opposite to the buckle and can be clamped under the buckle. The second side face of the circuit board opposite to the first side face is opposite to the clamping groove to be able to be clamped into the clamping groove.

[0028] In some embodiments,

[0029] A plurality of fixing holes are provided on the circuit board, and a plurality of screw holes are provided on the electrical box. The fixing holes and the screw holes are arranged in one-to-one correspondence. The capacitor is arranged on the A surface of the circuit board, and components are arranged on the B surface of the circuit board. The B surface is opposite to the A surface. The components are also multiple, and the positions of the components correspond to the fixing holes one by one, and the fixing holes penetrate through the components.

[0030] The present invention also provides an assembly method for an electrical box assembly, which uses the aforementioned electrical box assembly component to perform positioning and assembly on the circuit board and the electrical box, and includes the following assembly steps:

[0031] First, the capacitor on the circuit board is clamped by the clamping part, and at the same time, part of the structure of the positioning part is inserted into the positioning hole on the circuit board to form positioning of the circuit board.

[0032] Second, the second side of the circuit board opposite to the positioning hole is snapped into the card slot of the electrical box, the first side of the circuit board where the positioning hole is located is opposite to the buckle of the electrical box, and the fixture body is pressed down until the first side is located above the buckle, so that the circuit board is in an inclined state.

[0033] Third, the clamping part is released so that the capacitor is disengaged from the clamping part, and the fixture assembly is rotated so that its upper end surface is in a horizontal state.

[0034] Fourth, the positioning part is pressed downwards through the positioning part so that the positioning part is completely inserted into the positioning hole, and the first side is snapped into the lower end of the buckle, so that the circuit board completely falls to the bottom of the slot of the electrical box, and at the same time, the fixing hole and the screw hole are aligned and positioned to complete the positioning and assembly.

[0035] The fixture assembly for a circuit board, the electrical box assembly component and the assembly method provided by the present invention have the following beneficial effects:

[0036] 1. By providing a fixture assembly for the circuit board in the present invention, and the fixture assembly includes a clamping part and a positioning part. The clamping part can oppose the capacitor on the circuit board to clamp the capacitor, and at the same time, the positioning part can oppose the positioning hole on the circuit board to form plug-in positioning. Through the above structure, positioning effects at two or more positions between the fixture assembly and the circuit board can be formed, so that the circuit board is effectively positioned before being assembled into the electrical box, and then integrally assembled into the electrical box, realizing that the assembly and alignment adjustment of the components are completed in one action, making the two components of the circuit board and the electrical box accurately aligned, avoiding the need for manual inspection and alignment adjustment after assembly, making the assembly and position correction process automated, replacing manual operations, improving the assembly efficiency of the circuit board assembled onto the electrical box, and realizing automated assembly.

[0037] 2. The present invention can also achieve two states of semi - entry and full - entry by the difference in the first length and the second length of the positioning part inserted into the positioning hole. When the positioning part is in a semi - entry state, it can position the circuit board, align the hole during the downward pressing process, prevent the circuit board from skewing during the process, and avoid damaging the circuit board. When the positioning part is in a full - entry state, it can press downward to achieve the positioning and assembly of the circuit board and the electrical box. Therefore, through the two different length states of the positioning part inserted into the positioning hole, it is possible to first position the circuit board and the fixture assembly, and then position and assemble the circuit board onto the electrical box. The assembly efficiency of the circuit board is high, and there will be no skewing or other situations, further improving the assembly efficiency of the circuit board.

[0038] 3. The present invention also sets the positioning part to have a structure with a pointed tip at the free end, which can facilitate the partial insertion of the positioning part into the positioning hole to form and maintain a partially - entered state, and form and maintain a fully - entered state, thereby effectively improving the positioning efficiency of the circuit board and the fixture assembly, and improving the assembly efficiency of the circuit board positioned and assembled onto the electrical box; The clamping part of the present invention is preferably a structure of multiple clamping claws, which can form an elastic annular structure. Through elastic deformation, it can accommodate the insertion of the capacitor, clamp the capacitor, and after the capacitor is disengaged, the clamping claws return to their original state through elasticity, improving the efficiency between the disassembly and assembly of the fixture assembly and the circuit board, and further improving the assembly efficiency of the circuit board assembled onto the electrical box.

[0039] 4. The present invention also sets a buckle on one side wall of the groove of the electrical box structure of the groove body and a clamping groove on the other side wall, cooperating with the two sides of the circuit board. The first side is the side closest to the positioning hole, and the second side is the side opposite to the first side. When the circuit board and the fixture assembly are integrally assembled into the groove of the electrical box, first, the second side is snapped into the clamping groove of the electrical box, and then the first side is pressed downward. At this time, it is ensured that the positioning part is in a semi - entry state. By the method of first snapping into one side and then pressing down the other side, it is possible to achieve partial - part assembly, prevent skewing during the assembly process, and improve the assembly accuracy; Then, the clamping part is removed, the capacitor is released, and then the fixture assembly is pressed downward so that the positioning part fully enters the positioning hole of the circuit board, which can complete the removal of the fixture assembly while positioning and assembling the circuit board, making room for the next group of circuit board assemblies, and improving the assembly efficiency; Finally, the first side of the circuit board is pressed downward below the buckle, and at the same time, the screw hole on the electrical box is aligned with the fixing hole on the circuit board, achieving the effect of high - precision positioning of the circuit board assembled onto the electrical box, and greatly improving the assembly efficiency. The downward pressing assembly and the position adjustment of the fixing hole are simultaneous, and only one action can complete the assembly in place and alignment adjustment of the circuit board, enabling the fixing hole of the circuit board to be accurately aligned with the screw hole of the electrical box component, and also being able to solve the problem of heat - dissipation paste blocking the holes. Description of the Drawings

[0040] Figure 1It is a schematic structural diagram of the A side and the B side of the circuit board structure of the present invention;

[0041] Figure 2 It is a schematic structural diagram of the fixture assembly of the circuit board of the present invention;

[0042] Figure 3 It is a schematic structural diagram of the electrical box assembly of the present invention;

[0043] Figure 4 It is a schematic structural diagram after the fixture assembly and the circuit board are assembled;

[0044] Figure 5 It is Figure 4 A schematic diagram of the state when the positioning part is half inserted into the hole in;

[0045] Figure 6 It is Figure 4 A schematic diagram of the state when the positioning part is fully inserted into the hole in;

[0046] Figure 7 It is a schematic diagram of the specific assembly steps of the assembly method of the electrical box assembly of the present invention;

[0047] Figure 7.1 It is Figure 7 An enlarged structural diagram of the first step in;

[0048] Figure 7.2 It is Figure 7 An enlarged structural diagram of the second step in;

[0049] Figure 7.3 It is Figure 7 An enlarged structural diagram of the third step in;

[0050] Figure 7.4 It is Figure 7 An enlarged structural diagram of the fourth step in.

[0051] The reference numerals are shown as:

[0052] 1. Circuit board; 11. Capacitor; 13. Positioning hole; 14. Component; 15. Fixing hole; 16. First side; 17. Second side; 2. Fixture assembly; 20. Fixture body; 21. Positioning part; 22. Clamping part; 23. First body; 24. Second body; 3. Electrical box; 31. Screw hole; 32. Buckle; 33. Housing; 34. Card slot. Detailed implementation manners

[0053] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way restricts the present invention and its application or use. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0054] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0055] Unless otherwise specifically stated, the relative arrangements, numerical expressions, and numerical values of the components and steps set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for the sake of convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the said technologies, methods, and devices should be regarded as part of the authorized specification. In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, further discussion thereof is not required in subsequent drawings.

[0056] In the description of the present invention, it should be understood that the orientation terms such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal", and "top, bottom", etc. generally refer to the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description. Without contrary explanations, these orientation terms do not indicate and imply that the devices or elements referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus cannot be construed as limiting the protection scope of the present invention; the orientation terms "inside, outside" refer to the inside and outside relative to the contours of the respective components.

[0057] For ease of description, spatial relative terms such as "above", "over", "on the upper surface", "upper" etc. can be used here to describe the spatial positional relationship between a device or feature shown in the figure and other devices or features. It should be understood that the spatial relative terms are intended to encompass different orientations during use or operation in addition to the orientation depicted in the figure for the device. For example, if the device in the attached drawing is inverted, a device described as "above" or "over" other devices or structures will then be positioned "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both the orientations of "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the corresponding interpretations are made for the spatial relative descriptions used here.

[0058] In addition, it should be noted that the use of terms such as "first", "second" etc. to define components is only for the convenience of differentiating the corresponding components. Without additional statements, the above terms have no special meanings, and thus cannot be construed as limiting the protection scope of the present invention.

[0059] As Figures 1 - 7 shown, the present invention provides a fixture assembly for a circuit board, which includes:

[0060] A fixture body 20, a clamping portion 22 and a positioning portion 21. One end of the clamping portion 22 is connected to the fixture body 20, and the other end extends away from the fixture body 20. One end of the positioning portion 21 is also connected to the fixture body 20, and the other end extends away from the fixture body 20. The clamping portion 22 is opposite to the capacitor 11 on the circuit board 1 to be able to clamp the capacitor 11. At the same time, the positioning portion 21 is opposite to the positioning hole 13 on the circuit board 1 to be able to insert into the positioning hole 13, so as to form the positioning of two or more positions of the circuit board 1 during the assembly process.

[0061] By providing a fixture assembly for the circuit board, and this fixture assembly includes a clamping portion and a positioning portion. The clamping portion can be opposite to the capacitor on the circuit board to clamp the capacitor. At the same time, the positioning portion can be opposite to the positioning hole on the circuit board to form a plug-in positioning. Through the above structure, the positioning effect of two or more positions between the fixture assembly and the circuit board can be formed, so that the circuit board is effectively positioned before being assembled into the electrical box, and then integrally assembled into the electrical box, realizing that the assembly in place and the alignment adjustment of the components are completed in one action, enabling the two components of the circuit board and the electrical box to be accurately aligned, avoiding the need for manual inspection and alignment adjustment after assembly, making the assembly and position correction process automated, replacing manual operation, improving the assembly efficiency of the circuit board assembled onto the electrical box, and realizing automated assembly.

[0062] In some embodiments,

[0063] The positioning portion 21 can enter the positioning hole 13 by a first length to achieve the positioning between the fixture assembly 2 and the circuit board 1, and the positioning portion 21 can enter the positioning hole 13 by a second length to be able to position and assemble the circuit board 1 onto the electrical box 3; the first length is the length of the positioning portion 21 inserted below the upper end surface of the positioning hole 13, the second length is the length of the positioning portion 21 inserted below the upper end surface of the positioning hole 13, and the first length is less than the second length.

[0064] The present invention can also achieve two states of semi-entry and full-entry through the different first and second lengths of the positioning portion inserted into the positioning hole. When the positioning portion is in the semi-entry state, it can position the circuit board, align the hole during the downward pressing process, prevent the circuit board from skewing during the process, and avoid damaging the circuit board. When the positioning portion is in the full-entry state, it can press downward to achieve the positioning and assembly of the circuit board and the electrical box. Therefore, through the two different length states of the positioning portion inserted into the positioning hole, it is possible to first position the circuit board and the fixture assembly, and then position and assemble the circuit board onto the electrical box. The assembly efficiency of the circuit board is high, and there will be no skewing or other situations, further improving the assembly efficiency of the circuit board.

[0065] In some embodiments,

[0066] The first length of the positioning portion 21 entering the positioning hole 13 is a partial length of the positioning portion 21, that is, the semi-entry state, and the second length of the positioning portion 21 entering the positioning hole 13 is the entire length of the positioning portion 21, that is, the full-entry state.

[0067] These are two preferred different states of the positioning portion of the present invention inserted into the positioning hole. The first is the semi-entry state, that is, it is preferably inserted only partially into the positioning hole, which is applicable to the insertion method when positioning the fixture assembly and the circuit board at two places, preventing the circuit board from skewing during the process and avoiding damaging the circuit board. The second is the full-entry state, that is, it is preferably completely inserted into the positioning hole, which is applicable when the circuit board and the fixture assembly are integrally assembled into the groove body of the electrical box. It can accurately assemble the circuit board into the designated position in the electrical box by pressing down the fixture assembly, achieving the positioning and assembly of the circuit board and the electrical box, and improving the positioning accuracy and assembly efficiency.

[0068] In some embodiments,

[0069] The fixture body 20 is a plate-like structure, including a first body 23 and a second body 24. The positioning portion 21 is provided on the first body 23, the clamping portion 22 is provided on the second body 24, and the first body 23 and the second body 24 are connected as a whole.

[0070] This is a preferred structural form of the fixture body of the present invention. It is preferably a plate-like structure and includes the structural forms of a first body and a second body. The first body is used to connect the second body and set the positioning part, and the second body is used to set the clamping part, so that the positioning part and the clamping part are located at more than two different positions, respectively cooperate and connect with the positioning holes and capacitors on the circuit board, form more than one positioning, accurately position and clamp the circuit board, thus providing conditions for assembling it into a specified position on the electrical box, realizing the positioning and assembly between the circuit board and the electrical box, and improving the assembly efficiency.

[0071] In some embodiments,

[0072] The first body 23 is a rectangular plate structure, having a first end and a second end along its length direction. At least one of the positioning parts 21 is provided at the first end of the first body 23, and at least one of the positioning parts 21 is provided at the second end of the first body 23. One end of the positioning part 21 is connected to the first body 23, and the other end extends towards the first direction;

[0073] The second body 24 is connected at a position between the first end and the second end. One end of the second body 24 is connected to the first body 23, and the other end extends towards the second direction. One end of the clamping part 22 is connected to the second body 24, and the other end extends towards the first direction. The first direction and the second direction are different directions.

[0074] This is a further preferred structural form of the first body and the second body of the present invention. The first body is preferably a rectangular plate structure, and positioning parts are respectively provided at both ends in its length direction, which can respectively cooperate with multiple positioning holes on the circuit board, increasing the effect of positioning and clamping, and improving the efficiency of positioning and assembling the circuit board onto the electrical box; the extending direction of the second body part of the present invention is different from the extending direction of the positioning part and extends towards the second direction, so that a clamping part at a different position from the positioning part, especially in the horizontal direction, can be formed. Both the clamping part and the positioning part extend towards the first direction, which can respectively cooperate and connect with the positioning holes and capacitors on the circuit board, realize more than one positioning and assembly, accurately position and clamp the circuit board, thus accurately position and assemble the circuit board into a specified position on the electrical box, and improve the assembly efficiency.

[0075] In some embodiments,

[0076] The clamping part 22 is arranged at the end of the second body 24 far away from the first body 23; the second body 24 is also in a plate-like structure, which has a connecting section connected to the first body 23 and a clamping section where the clamping part 22 is arranged. The connecting section is a rectangular plate with two parallel and opposite sides. The projection of the clamping section in its plate surface is an arc structure or a circular structure. The connecting section is connected between the first body 23 and the clamping section.

[0077] This is the preferred structural form of the second body of the present invention. It includes a connecting section for connecting the first body and the clamping section. The clamping section is in an arc structure or a circular structure, which can facilitate the arrangement of clamping parts (claw jaws) with annular intervals on its end surface, realize the arrangement of the clamping parts, be located at different positions in more than two places from the positioning part, realize multi-point positioning and clamping, improve the positioning effect of the circuit board, and enhance the assembly efficiency of assembling the circuit board onto the electrical box.

[0078] In some embodiments,

[0079] The positioning part 21 is a pin. One end of the pin is connected to the first body 23, and the other end forms a tip towards the direction away from the first body 23 so as to be able to partially or entirely insert into the positioning hole 13 on the circuit board 1.

[0080] The present invention also sets the positioning part to a structure with a tip at the free end, which can facilitate the partial insertion into the positioning hole to form a state of partial entry and a state of full entry, thereby effectively improving the positioning efficiency of the circuit board and the fixture assembly, and enhancing the assembly efficiency of assembling the circuit board onto the electrical box.

[0081] The fixture assembly 2 of the present invention preferably includes two pins (positioning parts 21) and claw jaws (clamping parts 22), etc. The positions of the two pins respectively correspond to two positioning holes 13 on the PCB board (circuit board 1). The diameter of the pin is larger than that of the positioning hole 13, and the bottom of the pin is in a conical structure. The claw jaws correspond to the position of the capacitor 11.

[0082] The diameter of the pin of the fixture assembly 2 of the present invention is preferably 1.3 to 2 times that of the positioning hole 13, and the angle of the bottom conical structure is preferably between 15 degrees and 20 degrees.

[0083] In some embodiments,

[0084] The clamping portion 22 is in the structure of a clamping jaw. There are at least two clamping jaws, and the at least two clamping jaws enclose an annular structure. Adjacent clamping jaws are spaced in the circumferential direction. The clamping jaws are of an elastic structure. The capacitor 11 can be inserted into the space between adjacent clamping jaws. When the capacitor 11 is inserted into the space between adjacent clamping jaws, the adjacent clamping jaws elastically open and form an elastic clamping force to clamp the capacitor 11. When the capacitor 11 is withdrawn from the space between adjacent clamping jaws, the adjacent clamping jaws contract to their original state through the elastic restoring force.

[0085] The clamping portion of the present invention is preferably in the structure of multiple clamping jaws, which can enclose an elastic annular structure. Through elastic deformation, it can accommodate the insertion of the capacitor, clamp the capacitor, and after the capacitor is disengaged, the clamping jaws return to their original state through elasticity, improving the efficiency between the disassembly and assembly fixture assembly and the circuit board, and further improving the assembly efficiency of assembling the circuit board onto the electrical box.

[0086] The present invention also provides an electrical box assembly component, which includes the fixture assembly 2 of the aforementioned circuit board, and also includes a circuit board 1 and an electrical box 3.

[0087] The circuit board 1 is provided with a positioning hole 13 and a capacitor 11. The clamping portion 22 is opposite to the capacitor 11 to be able to clamp the capacitor 11, and at the same time the positioning portion 21 is opposite to the positioning hole 13 to be able to insert into the positioning hole 13.

[0088] By providing the clamping portion and the positioning portion on the fixture assembly of the circuit board, the present invention can be opposite to the capacitor and the positioning hole on the circuit board respectively, so as to clamp the capacitor while inserting the positioning portion, effectively forming the positioning function at more than two positions between the fixture assembly and the circuit board, enabling the circuit board to be effectively positioned before being assembled onto the electrical box, and then integrally assembled into the electrical box, realizing that the actions of component assembly in place and alignment adjustment are completed in one go, enabling the two components of the circuit board and the electrical box to be accurately aligned, avoiding the need for manual inspection and alignment adjustment after assembly, making the assembly and position correction process automatable, replacing manual operations, improving the assembly efficiency of assembling the circuit board onto the electrical box, and realizing automated assembly.

[0089] The circuit board 1 of the present invention includes components 14, a capacitor 11, a positioning hole 13, etc., and is a stable whole; among them, the capacitor 11 is located on the A side, and the components 14 on the B side are provided with fixing holes 15 for screwing and fixing; the PCB board (circuit board 1) is provided with two positioning holes 13.

[0090] In some embodiments,

[0091] The electrical box 3 has a groove structure which can accommodate the circuit board 1 therein. A buckle 32 is provided on the groove wall on one side of the electrical box 3, and a clamping groove 34 is provided on the groove wall on the other side of the electrical box 3, such that the buckle 32 and the clamping groove 34 are oppositely arranged.

[0092] The first side 16 of the circuit board 1 adjacent to and opposite the positioning hole 13 is opposite to the buckle 32 and can be inserted under the buckle 32. The second side 17 of the circuit board 1 opposite to the first side 16 is opposite to the clamping groove 34 so as to be inserted into the clamping groove 34.

[0093] The present invention also provides a buckle on one side wall of the groove body of the electrical box structure and a clamping groove on the other side wall, which cooperate with two sides of the circuit board. The first side is the side closest to the positioning hole, and the second side is the side opposite to the first side. When the circuit board and the fixture assembly are integrally assembled into the groove of the electrical box, first insert the second side into the clamping groove of the electrical box, and then press down the first side. At this time, ensure that the positioning part is in a semi-entered state. By first inserting one side and then pressing down the other side, partial assembly can be realized, preventing skew during the assembly process and improving the assembly accuracy. Finally, press down the first side of the circuit board under the buckle, and at the same time make the screw holes on the electrical box opposite to the fixing holes on the circuit board, achieving the effect of high-precision positioning of the circuit board assembled onto the electrical box, and greatly improving the assembly efficiency.

[0094] In some embodiments,

[0095] A plurality of fixing holes 15 are provided on the circuit board 1, and a plurality of screw holes 31 are provided on the electrical box 3. The fixing holes 15 and the screw holes 31 are arranged in one-to-one correspondence. The capacitor 11 is arranged on the A surface of the circuit board 1, and components 14 are arranged on the B surface of the circuit board 1. The B surface is opposite to the A surface. The components 14 are also multiple, and the positions of the components 14 and the fixing holes 15 are in one-to-one correspondence, and the fixing holes 15 penetrate through the components 14.

[0096] The present invention realizes the effect of positioning and assembling the circuit board to a specified position on the electrical box through the butt joint and assembly of the fixing holes on the circuit board and the screw holes on the electrical box. The pressing-down assembly and the position adjustment of the fixing holes are simultaneous, and the circuit board can be assembled in place and the alignment adjustment can be completed only through one action, enabling the fixing holes of the circuit board to be accurately aligned with the screw holes of the electrical box assembly, and also solving the problem of heat-conducting paste blocking the holes.

[0097] The present invention addresses the problem that after the circuit board is assembled into the electrical box assembly, it is impossible to effectively judge and correct the position of the circuit board. Preferably, a 6-axis manipulator can be used in combination with a new fixture assembly, in which the gripper grabs the circuit board and the pin assembles and positions the circuit board, so that the operation of assembling the circuit board in place and adjusting the alignment can be completed in one action, enabling the fixing holes of the circuit board to be accurately aligned with the screw holes of the electrical box assembly.

[0098] It can solve the following technical problems:

[0099] 1. The problems of low efficiency, poor reliability and high defect rate in the process of circuit board assembly and alignment;

[0100] 2. The problem that automation cannot be achieved in the process of circuit board assembly and alignment.

[0101] After the circuit board 1 of the present invention is assembled into the electrical box assembly, it is inserted into the card slot 34 on the right side and the buckle 32 on the left side, and all the fixing holes 15 are completely aligned with the screw holes 31, so that the production yield is the highest.

[0102] The present invention also provides an assembly method for an electrical box assembly, which uses the aforementioned electrical box assembly component to perform positioning and assembly on the circuit board 1 and the electrical box 3, and includes the following assembly steps:

[0103] First, the capacitor 11 on the circuit board 1 is clamped by the clamping part 22, and at the same time, a part of the structure of the positioning part 21 is inserted into the positioning hole 13 on the circuit board 1 to form the positioning of the circuit board 1.

[0104] Second, the second side surface 17 of the circuit board 1 opposite to the positioning hole 13 is clamped into the card slot 34 of the electrical box 3, the first side surface 16 where the positioning hole 13 of the circuit board 1 is located is opposite to the buckle 32 of the electrical box 3, and the fixture body 20 is pressed down until the first side surface 16 is located above the buckle 32, so that the circuit board 1 is in an inclined state.

[0105] Third, release the clamping part 22 so that the capacitor 11 is disengaged from the clamping part 22, and rotate the fixture assembly 2 so that its upper end surface is in a horizontal state.

[0106] Fourth, press down through the positioning part 21 so that the positioning part 21 is completely inserted into the positioning hole 13, and the first side surface 16 is clamped into the lower end of the buckle 32, so that the circuit board 1 completely falls to the bottom of the slot of the electrical box 3, and at the same time, the fixing hole 15 is aligned with the screw hole 31 for positioning to complete the positioning and assembly.

[0107] The present invention also sets a buckle on one side wall of the electrical box structure of the slot body and a clamping groove on the other side wall, which cooperate with the two sides of the circuit board. The first side is the side closest to the positioning hole, and the second side is the side opposite to the first side. When the circuit board and the fixture assembly are integrally assembled into the slot of the electrical box, first snap the second side into the clamping groove of the electrical box, and then press down the first side. At this time, ensure that the positioning part is in a semi-entered state. By first snapping into one side and then pressing down the other side, it is possible to achieve partial assembly, prevent skewing during the assembly process, and improve the assembly accuracy. Then, remove the clamping part, release the capacitor, and then press down the fixture assembly so that the positioning part fully enters the positioning hole of the circuit board. It is possible to complete the removal of the fixture assembly while positioning and assembling the circuit board, making room for the fixture for the next group of circuit board assemblies and improving the assembly efficiency. Finally, press down the first side of the circuit board below the buckle, and at the same time make the screw hole on the electrical box opposite to the fixing hole on the circuit board, achieving the effect of high-precision positioning of the circuit board assembled onto the electrical box, and greatly improving the assembly efficiency. The pressing-down assembly and the position adjustment of the fixing hole are simultaneous, and the circuit board can be assembled in place and the alignment adjustment can be completed only through one action, enabling the fixing hole of the circuit board to be accurately aligned with the screw hole of the electrical box component, and also solving the problem of heat-conducting paste blocking the hole.

[0108] The present invention is applicable to the situation where there are precision requirements for the assembly of two components, inspection and position adjustment are required after assembly, and the reference and markings for alignment adjustment are blocked after assembly, resulting in the need for manual processing and the inability to achieve automated assembly. Preferably, a 6-axis manipulator can be used in combination with a new type of fixture assembly (including a jaw and a pin mechanism) to complete the assembly in place and alignment adjustment of the components with one action, enabling the two components to be accurately aligned. Avoiding the need for manual inspection and alignment adjustment after assembly makes the assembly and position correction process automated and replaces manual operations.

[0109] The present invention can solve the problem of alignment during the assembly of the circuit board and the electrical box, avoid the need for manual inspection and adjustment of the circuit board position after assembly, and make the assembly and position correction process automated.

[0110] During the assembly process of the circuit board and the electrical box in the prior art, there are problems such as misalignment between the fixing hole 15 and the screw hole 31, and different degrees of blockage of the holes by heat-conducting paste, resulting in great difficulty in alignment adjustment. It is necessary to manually clean the heat-conducting paste before performing alignment adjustment, and automated assembly cannot be achieved. The greater the relative offset in position, the higher the defective rate of screwing and the worse the reliability.

[0111] The fixture assembly 2 of the present invention clamps the capacitor 11 of the circuit board 1, and obliquely inserts the right side of the circuit board 1 into the clamping groove 34, as Figure 7.1 ; rotate the fixture assembly 2 until the left side of the circuit board 1 contacts the buckle 32, and keep the right side of the circuit board 1 in the clamping groove 34 during the process, as Figure 7.2; Then the gripper (the gripping part 22) opens, and the fixture assembly 2 rotates to a specific vertical position, such as Figure 7.3 ; Figures 7.1 to 7.3 During the process, the pin (the positioning part 21) of the fixture assembly 2 remains in a state of being half inserted into the positioning hole 13 of the circuit board 1; the fixture assembly 2 presses down, and the pin completely enters the positioning hole 13, pressing the circuit board 1 in place. The left side of the circuit board 1 is installed into the buckle 32. At the same time, the pin corrects and adjusts the position of the circuit board 1 through the positioning hole 13, so that the fixing hole 15 is aligned with the screw hole 31, such as Figure 7.4 .

[0112] Such as Figures 4 - 6 , preferably, the fixture assembly 2 is equipped with a 6-axis robot. The steps and actions of the assembly process are controlled by the robot program. The gripper grabs the capacitor 11 of the circuit board 1. At this time, the pin (the positioning part 21) is in a state of being half inserted into the hole, such as Figure 5 .

[0113] The present invention preferably uses a 6-axis robot to carry the fixture assembly 2, and adopts a new assembly method of rotary assembly and pin positioning, so as to complete the in-place assembly and alignment adjustment of the components in one action, enabling the accurate alignment of the two components. It avoids the need for manual inspection and alignment adjustment after assembly, making the assembly and position correction process automated and replacing manual operations.

[0114] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention. The above is only the preferred implementation manner of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A fixture assembly for a circuit board, characterized in that: Including: A fixture body (20), a clamping part (22) and a positioning part (21). One end of the clamping part (22) is connected to the fixture body (20), and the other end extends away from the fixture body (20). One end of the positioning part (21) is also connected to the fixture body (20), and the other end extends away from the fixture body (20). The clamping part (22) faces the capacitor (11) on the circuit board (1) to be able to clamp the capacitor (11). At the same time, the positioning part (21) faces the positioning hole (13) on the circuit board (1) to be able to insert into the positioning hole (13), so as to form the positioning of two or more positions of the circuit board (1) during the assembly process.

2. The fixture assembly for a circuit board according to claim 1, characterized in that: The positioning part (21) can enter the positioning hole (13) by a first length to realize the positioning between the fixture assembly (2) and the circuit board (1). The positioning part (21) can enter the positioning hole (13) by a second length to be able to position and assemble the circuit board (1) onto the electrical box (3). The first length is the length of the positioning part (21) inserted below the upper end face of the positioning hole (13), and the second length is the length of the positioning part (21) inserted below the upper end face of the positioning hole (13). The first length is less than the second length.

3. The fixture assembly for a circuit board according to claim 2, characterized in that: The first length that the positioning part (21) enters the positioning hole (13) is a partial length of the positioning part (21), that is, a semi-entering state. The second length that the positioning part (21) enters the positioning hole (13) is the full length of the positioning part (21), that is, a full-entering state.

4. The fixture assembly for a circuit board according to any one of claims 1-3, characterized in that: The fixture body (20) is in a plate-like structure, including a first body (23) and a second body (24). The positioning part (21) is arranged on the first body (23), and the clamping part (22) is arranged on the second body (24). The first body (23) and the second body (24) are connected as a whole.

5. The fixture assembly for a circuit board according to claim 4, characterized in that: The first body (23) is in a rectangular plate structure, having a first end and a second end along its length direction. At least one positioning part (21) is arranged at the first end of the first body (23), and at least one positioning part (21) is arranged at the second end of the first body (23). One end of the positioning part (21) is connected to the first body (23), and the other end extends in the first direction; The second body (24) is connected at a position between the first end and the second end. One end of the second body (24) is connected to the first body (23), and the other end extends in the second direction. One end of the clamping portion (22) is connected to the second body (24), and the other end extends in the first direction. The first direction and the second direction are different directions.

6. The fixture assembly for a circuit board according to claim 4, wherein: The clamping portion (22) is disposed on the second body (24) and at an end away from the first body (23); the second body (24) is also in a plate-like structure, which has a connecting section connected to the first body (23) and a clamping section where the clamping portion (22) is disposed. The connecting section is a rectangular plate with two parallel and opposite side surfaces. The projection of the clamping section in its plate surface is an arc structure or a circular structure. The connecting section is connected between the first body (23) and the clamping section.

7. The fixture assembly for a circuit board according to claim 4, wherein: The positioning portion (21) is a pin. One end of the pin is connected to the first body (23), and the other end forms a tip in a direction away from the first body (23) so as to be partially or fully inserted into the positioning hole (13) on the circuit board (1).

8. The fixture assembly for a circuit board according to any one of claims 1-7, wherein: The clamping portion (22) is in the structure of a clamping jaw. There are at least two clamping jaws. At least two clamping jaws enclose an annular structure, and adjacent clamping jaws are spaced apart in the circumferential direction. The clamping jaws are elastic structures. The capacitor (11) can be inserted into the space between adjacent clamping jaws. When the capacitor (11) is inserted into the space between adjacent clamping jaws, adjacent clamping jaws elastically open and form an elastic clamping force to clamp the capacitor (11). When the capacitor (11) is withdrawn from the space between adjacent clamping jaws, adjacent clamping jaws contract to their original state through elastic restoring force.

9. An electrical box assembly, wherein: It includes the fixture assembly (2) for a circuit board according to any one of claims 1-8, and also includes a circuit board (1) and an electrical box (3). The circuit board (1) is provided with a positioning hole (13) and a capacitor (11). The clamping portion (22) is opposite to the capacitor (11) so as to clamp the capacitor (11), and at the same time the positioning portion (21) is opposite to the positioning hole (13) so as to be inserted into the positioning hole (13).

10. The electrical box assembly according to claim 9, wherein: The electrical box (3) is in a groove structure, which can accommodate the circuit board (1) therein. A buckle (32) is provided on the groove wall of one side of the electrical box (3), and a clamping groove (34) is provided on the groove wall of the other side of the electrical box (3), so that the buckle (32) and the clamping groove (34) are oppositely arranged. The first side (16) of the circuit board (1) that is relatively adjacent to the positioning hole (13) faces the snap (32) and can be inserted below the snap (32). The second side (17) of the circuit board (1) that is opposite to the first side (16) faces the card slot (34) so as to be able to be inserted into the card slot (34).

11. The electrical box assembly component according to claim 10, characterized in that: A plurality of fixing holes (15) are provided on the circuit board (1), and a plurality of screw holes (31) are provided on the electrical box (3). The fixing holes (15) and the screw holes (31) are arranged in one-to-one correspondence. The capacitor (11) is arranged on the A surface of the circuit board (1), and components (14) are arranged on the B surface of the circuit board (1). The B surface faces away from the A surface. There are also a plurality of the components (14). The components (14) and the fixing holes (15) are arranged in one-to-one correspondence, and the fixing holes (15) penetrate through the components (14).

12. An assembly method for an electrical box assembly, characterized in that: Using the electrical box assembly component according to claim 11, perform positioning assembly on the circuit board (1) and the electrical box (3), including the following assembly steps: First, clamp the capacitor (11) on the circuit board (1) through the clamping part (22), and at the same time insert part of the structure of the positioning part (21) into the positioning hole (13) on the circuit board (1) to form positioning of the circuit board (1). Second, insert the second side (17) of the circuit board (1) that is opposite to the positioning hole (13) into the card slot (34) of the electrical box (3). Make the first side (16) where the positioning hole (13) of the circuit board (1) is located face the snap (32) of the electrical box (3), and press down the fixture body (20) until the first side (16) is located above the snap (32), so that the circuit board (1) is in an inclined state. Third, release the clamping part (22) so that the capacitor (11) disengages from the clamping part (22), and rotate the fixture assembly (2) so that its upper end face is in a horizontal state. Fourth, press down through the positioning part (21) so that the positioning part (21) is completely inserted into the positioning hole (13), and snap the first side (16) into the lower end of the snap (32), so that the circuit board (1) completely falls to the bottom of the slot of the electrical box (3). At the same time, align and position the fixing holes (15) and the screw holes (31) to complete the positioning assembly.

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