Rectification voltage stabilizer structure

Abstract

The utility model discloses a rectification voltage stabilizer structure which comprises a shell, a circuit board assembly and a connector assembly. The shell is of a cavity structure with one side open, and a containing cavity is formed in the shell. At least one convex rib is arranged at the corresponding position of the inner walls of the two sides, adjacent to the open side, of the shell, and the convex ribs at the corresponding positions are located on the same horizontal plane. A gap is formed between each convex rib and the lower side of the shell, so that a mounting groove is formed between each convex rib and the lower side wall of the shell, or a mounting groove is formed between every two adjacent convex ribs, and a circuit board substrate of the circuit board assembly is mounted in the mounting grooves; the connector assembly comprises an insulating shell and a metal connecting terminal; the metal connecting terminal is fixedly connected with the circuit board assembly; resin is filled in the housing and between the insulating housing and the open side of the housing. According to the utility model, the material cost and the processing cost are effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to voltage stabilizer technical field especially relates to a rectifier voltage stabilizer structure. BACKGROUND

[0002] The rectifier voltage stabilizer is composed of metal shell 1', connector assembly 2', circuit board 3', electrical element 4', connecting piece 5' and resin 6', as shown in the description. Figure 1 The electrical element and connecting piece are assembled on the TOP face of the circuit board and welded to form a circuit board assembly. The circuit board assembly is placed in the recess on the front face of the metal shell. First, resin is filled between the BOT face and the recess of the shell and solidified to dissipate heat from the device to the metal shell body. The recess of the plastic body of the circuit board connector assembly is assembled and connected with the notch of the shell, and the metal terminal of the connector is matched and welded with the connecting piece on the circuit board assembly. Then, resin is injected into the recess of the shell from the face of the circuit board assembly and the element and solidified. Two resin injection processes are required to achieve sealing, anti-vibration and waterproof effects.

[0003] Therefore, in the present product structure, in order to realize the electrical connection between the circuit board and the metal terminal of the connector, a connecting piece is designed, which increases the cost of the connecting piece and the assembly cost of the connecting piece and the circuit board. At the same time, the resin filling and solidification between the BOT face of the circuit board and the recess of the shell is also an engineering process designed to ensure the processability and assembly sequence of the present structure, which causes unnecessary material and processing cost waste for realizing the function of the product. UTILITY MODEL CONTENT

[0004] In view of the above-mentioned problems of the prior art, the utility model solves the technical problem of providing a rectifier voltage stabilizer structure to solve the problems of high cost, complex assembly process and serious material and processing cost waste in the prior art.

[0005] In order to solve the above-mentioned technical problem, the utility model adopts the following technical scheme:

[0006] A rectifier voltage stabilizer structure, comprising a shell, a circuit board assembly and a connector assembly; the shell is a cavity structure with one side open, and a containing cavity is formed inside the shell;

[0007] At least one protruding rib is arranged at the corresponding position of the two inner walls adjacent to the open side of the shell, and the protruding ribs at the corresponding positions are located on the same horizontal plane. When the protruding rib is one, the protruding rib has a spacing between the lower side of the shell, so that a mounting groove is formed between the protruding rib and the lower side wall of the shell. When the protruding rib is a plurality of protruding ribs, the plurality of protruding ribs are arranged in parallel from top to bottom, and there is a spacing between the adjacent protruding ribs, so that a mounting groove is formed between the adjacent protruding ribs. The circuit board substrate of the circuit board assembly is mounted in the mounting groove.

[0008] The connector assembly comprises an insulating shell and a metal connecting terminal; the insulating shell extends into the shell from the open side of the shell and has a gap between the open side of the shell; the metal connecting terminal is fixedly connected with the circuit board assembly; and the shell is filled with resin inside and between the insulating shell and the open side of the shell.

[0009] As an optimization, the shell is formed by aluminum alloy die casting, and the lower side of the shell is provided with fins.

[0010] As an optimization, the circuit board assembly comprises a circuit board substrate and electrical elements mounted on the circuit board substrate.

[0011] When the circuit board assembly is mounted in the mounting groove formed between the protruding ribs and the lower side of the shell, the electrical elements are mounted on the upper side of the circuit board substrate.

[0012] When the circuit board assembly is mounted in the mounting groove formed between the adjacent protruding ribs, the electrical elements are distributed on both sides of the circuit board substrate.

[0013] As an optimization, the electrical elements comprise power elements, and when the circuit board assembly is mounted in the mounting groove formed between the adjacent protruding ribs, the power elements are mounted on the lower side of the circuit board substrate and are in contact with the lower side of the shell.

[0014] As an optimization, the electrical elements are SMT mounted elements and are mounted on the circuit board substrate by mounting or inserting.

[0015] As an optimization, the metal connecting terminal is mounted on the circuit board substrate or is connected by inserting.

[0016] As an optimization, the left and right sides and the lower side of the insulating shell are provided with grooves, the grooves are communicated with the accommodating cavity through the gap between the insulating shell and the open side of the shell, and the end of the insulating shell close to the metal connecting terminal forms left and right side ears and a lower side ear; the lower side of the open side of the shell extends downward and is bent to form two-stage continuous first and second step structures, the lower side of the insulating shell is in contact with the second step structure, and there is a gap between the lower side ear of the insulating shell and the first step structure, so that the groove on the lower side of the insulating shell is communicated with the accommodating cavity.

[0017] As an optimization, the resin is a heat-conducting epoxy resin.

[0018] Compared with the prior art, the present application has the following beneficial effects: Practical new type content

[0020] The mounting groove is formed by arranging the convex rib structure, the metal connecting terminal of the connector assembly is connected with the circuit board assembly by means of surface mounting or plug-in mounting, thus the existing connecting piece is cancelled, the material cost is reduced, the assembling process of the connecting piece and the circuit board in the existing assembling process is cancelled, the solidification and sealing can be completed by one-time resin injection, thus the resin injection and solidification process is reduced by one time, and the processing cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a rectifier voltage stabilizer in the prior art;

[0022] Figure 2 It is a top view of the rectifier voltage stabilizer in the first embodiment of the present application;

[0023] Figure 3 It is an A-A sectional view in the first embodiment of the present application; Figure 2

[0024] Figure 4 It is a B-B sectional view in the first embodiment of the present application; Figure 2

[0025] Figure 5 It is a schematic diagram of the convex rib structure of the rectifier voltage stabilizer in the present application;

[0026] Figure 6 It is an A-A sectional view of the second embodiment of the present application;

[0027] Figure 7 It is a B-B sectional view of the second embodiment of the present application;

[0028] In the drawing, 1 is an outer shell, 2 is a connector assembly, 3 is a heat sink, 4 is resin, 5 is a convex rib, 6 is a mounting groove, 7 is a metal connecting terminal, 8 is a circuit board substrate, 9 is a power element, 10 is other electrical elements, 11 is an insulating shell, 12 is a groove, 13 is a first step structure, and 14 is a second step structure. DETAILED DESCRIPTION

[0029] The present application will be further described in detail below with reference to the drawings.

[0030] In the specific implementation:

[0031] In the first embodiment, referring to Figures 2-5 ​​The utility model discloses a rectifier voltage stabilizer structure, including shell 1, circuit board subassembly and connector subassembly 2, wherein, the shell 1 is by aluminum alloy pressure casting and is formed, and is the cavity structure of one side open, and the inside formation contains the cavity, and is equipped with the fin 3 under the side, at least one lug 5 is equipped with in the corresponding position of the two side inner walls of shell 1 and open side adjacent respectively, and the lug 5 of corresponding position is located the same horizontal plane, when the lug 5 is one, the lug 5 and the lower side of shell 1 have the spacing, make the lug 5 and the lower side wall of shell 1 form the installation groove 6, when the lug 5 is multiple, the lug 5 of multiple upper and lower parallel distribution, and the lug 5 between adjacent has the spacing, make the lug 5 between adjacent form the installation groove 6, the circuit board substrate 8 of circuit board subassembly is installed in the installation groove 6,

[0032] The connector subassembly 2 includes an insulating housing 11 and a metal connecting terminal 7. The insulating housing 11 extends into the shell 1 from the open side of the shell 1 and has a gap between the open side of the shell 1. The metal connecting terminal 7 is fixedly connected with the circuit board subassembly. Resin 4 is filled in the shell 1 and between the insulating housing 11 and the open side of the shell 1.

[0033] The utility model discloses a lug structure forms the installation groove fixed circuit board subassembly, and makes the metal connecting terminal of connector subassembly through the mode of surface mounting or plug-in and is connected with circuit board subassembly, thereby canceling the existing connecting piece, reduce the material cost, cancel the assembly engineering of connecting piece and circuit board in the existing assembly process simultaneously, and can complete solidification and sealing through the injection of resin once, thereby reducing the resin injection and solidification procedure once, reduce the processing cost.

[0034] Specifically, the circuit board subassembly includes a circuit board substrate 8 and electrical elements mounted on the circuit board. The electrical elements include power elements 9 and other electrical elements 10. The circuit board substrate 8 is an aluminum substrate single-sided copper clad circuit board. The power elements 9 and other electrical elements 10 are SMT surface mountable elements. The power elements 9 and other electrical elements 10 are SMT surface mounted on the circuit board copper foil surface and reflow soldered to form the circuit board subassembly.

[0035] The power elements 9 are high heat generating electrical elements. The power elements 9 and other electrical elements 10 are mounted on one side of the circuit board substrate 8 away from the lower side. There is a gap between the circuit board substrate 8 and the lower side wall of the shell 1. The gap allows the resin 4 to enter, so that the heat can be transferred through the power elements 9-circuit board substrate 8-resin 4-lower side wall of the shell 1-fins 3, thereby ensuring heat dissipation.

[0036] The left and right sides and the lower side of the insulating shell 11 have grooves 12, which are communicated with the accommodating cavity through the gap between the insulating shell 11 and the open side of the shell 1, so that the insulating shell 11 forms left and right side ears and a lower side ear near one end of the metal connecting terminal 7; wherein the lower side of the open side of the shell extends downward and is bent to form two-level continuous first and second step structures 13 and 14, the lower side of the insulating shell 11 is attached to the second step structure 14, and there is a gap between the lower side ear of the insulating shell 11 and the first step structure 13, so that the groove 12 on the lower side is communicated with the accommodating cavity.

[0037] The resin 4 is filled into the mounting groove 6 of the shell 1 to cover the circuit board substrate 8 and fill the gap between the groove 12 of the insulating shell 11 of the connector assembly 2 and the upper side wall of the shell 1, and is solidified.

[0038] The width and depth of the mounting groove 6 have a gap of +0.2-0.4mm relative to the thickness of the circuit board, so as to ensure that the circuit board can be smoothly mounted into the shell 1, and the height of the ribs 5 is designed to be 2-3mm, so as to reduce the influence on the effective use area of the circuit board.

[0039] In the second embodiment, the insulating shell 11 of the connector assembly 2 is mounted in the mounting groove 6 formed by the two ribs 5 on the two side walls of the shell 1 adjacent to the open side, the power element 9 and other electrical elements 10 are mounted on the two sides of the circuit board substrate 8 away from each other, and the power element 9 is attached to the lower side wall of the shell 1, so that the heat of the power element 9 can be quickly dissipated through the heat dissipation fins 3 on the lower side wall. Figures 6-7 The power element 9 is in the form of a plug-in element, and the rest of the power element 9 except the pins is insulated and packaged, and the pins are bent by 90°, the other electrical elements are SMT surface-mounted packaging elements, the metal connecting terminal 7 of the connector assembly 2 is also bent by 90° and is surface-mounted on the circuit board from the B surface of the circuit board, the other electrical elements 10 are attached to the circuit board substrate 8 and are wave-soldered, and the circuit board assembly is formed.

[0040] In summary, the utility model effectively reduces the material cost and processing cost.

[0041] Although the embodiments of the utility model have been shown and described, for those of ordinary skill in the art, various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and basis of the utility model, the scope of the utility model is defined by the appended claims and their equivalents, therefore the embodiments of the utility model are only for the illustrative examples of the utility model, the embodiments of the utility model do not constitute the limitation of the utility model no matter from which point.

Claims

1. A rectifier regulator structure comprising a housing, a circuit board assembly and a connector assembly; characterized by, The shell is a cavity structure with one open side, and a receiving cavity is formed inside the shell; At least one protruding rib is arranged at a corresponding position of the inner wall of the shell on the side adjacent to the open side, and the protruding ribs at the corresponding positions are located on the same horizontal plane; when the protruding rib is one, the protruding rib has a spacing with the lower side of the shell, so that a mounting groove is formed between the protruding rib and the lower side wall of the shell; when the protruding ribs are multiple, the multiple protruding ribs are arranged in parallel from top to bottom, and the adjacent protruding ribs have a spacing, so that a mounting groove is formed between the adjacent protruding ribs, and the circuit board substrate of the circuit board assembly is mounted in the mounting groove; The connector assembly comprises an insulating shell and a metal connecting terminal; the insulating shell extends into the shell from the open side of the shell and has a gap with the open side of the shell; the metal connecting terminal is fixedly connected with the circuit board assembly; and the shell and the gap between the insulating shell and the open side of the shell are filled with resin.

2. The rectifier regulator structure according to claim 1, wherein The shell is made of aluminum alloy by pressure casting, and the lower side of the shell is provided with a heat sink.

3. The rectifier regulator structure according to claim 1, wherein The circuit board assembly comprises a circuit board substrate and electrical elements mounted on the circuit board substrate; When the circuit board assembly is mounted in the mounting groove formed between the protruding rib and the lower side of the shell, the electrical elements are mounted on the upper side of the circuit board substrate; When the circuit board assembly is mounted in the mounting groove formed between the adjacent protruding ribs, the electrical elements are distributed on both sides of the circuit board substrate.

4. The rectifier regulator structure according to claim 3, wherein The electrical elements comprise power elements, and when the circuit board assembly is mounted in the mounting groove formed between the adjacent protruding ribs, the power elements are mounted on the lower side of the circuit board substrate and are in contact with the lower side of the shell.

5. The rectifier regulator structure according to claim 3, wherein The electrical elements are SMT mounted elements and are mounted on the circuit board substrate by mounting or inserting.

6. The rectifier regulator structure according to claim 1, wherein The metal connecting terminal is mounted on the circuit board substrate or is connected by inserting.

7. The rectifier regulator structure of claim 1, wherein The left and right sides and the lower side of the insulating shell are provided with grooves, the grooves are communicated with the receiving cavity through the gap between the insulating shell and the open side of the shell, so that the end of the insulating shell close to the metal connecting terminal forms left and right side ears and a lower side ear; wherein, the lower side of the open side of the shell extends downward and is bent to form two-stage continuous first and second step structures, the lower side of the insulating shell is in contact with the second step structure, and the lower side ear of the insulating shell has a gap with the first step structure, so that the groove on the lower side is communicated with the receiving cavity.

8. The rectifier regulator structure of claim 1, wherein The resin is a heat-conducting epoxy resin.

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