Circuit board mounting structure of electric vehicle controller

Abstract

The utility model discloses a circuit board installation structure of an electric vehicle controller, which comprises a controller shell, a circuit board a and a circuit board b are arranged in the controller shell up and down, the installation structure further comprises a tensioning piece, a through jack is arranged in the tensioning piece along the axial direction, the circuit board a is sleeved on the outer side of the upper part of the tensioning piece, and the circuit board b is sleeved on the outer side of the lower part of the tensioning piece. The circuit board b is arranged on the outer side of the lower part of the tensioning piece in a sleeving manner; the bottom of the tensioning piece is inserted into the inner wall of the controller shell; the inserting piece is movably inserted into the inserting hole of the tensioning piece, and when the inserting piece is inserted into the inserting hole, the upper end and the lower end of the tensioning piece are expanded so that the upper end and the lower end of the tensioning piece can abut against the circuit board a, the circuit board b and the inner wall of the controller shell at the same time. According to the invention, screw-free fixed installation of the circuit board is realized, and heat dissipation between the circuit board and the controller shell can be enhanced at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of electric vehicle controllers, in particular to a circuit board installation structure of an electric vehicle controller. Background Art

[0002] The controller is the core component of the electric vehicle, and its main internal component is the circuit board. Generally, there is a single circuit board or a dual circuit board in the controller. In the prior art, the circuit board is generally installed in the housing of the controller by screws. For the controller with dual circuit boards, the screw installation method is not only structurally unstable, but also causes damage to the circuit board when screwing in or out. Utility Model Content

[0003] In order to solve the deficiencies of the prior art, the present application provides a circuit board mounting structure of an electric vehicle controller, including a controller housing, in which a circuit board a and a circuit board b are arranged up and down, and the mounting structure also includes:

[0004] The tensioning member has a through hole formed in the axial direction thereof, the circuit board a is sleeved on the outer side of the upper part of the tensioning member, the circuit board b is sleeved on the outer side of the lower part of the tensioning member, and the bottom of the tensioning member is plugged into the inner wall of the controller housing;

[0005] The insert is movably inserted into the jack of the tensioner. When the insert is inserted into the jack, the upper and lower ends of the tensioner expand to simultaneously abut against the circuit board a, the circuit board b and the inner wall of the controller housing.

[0006] Furthermore, the upper part and the bottom part of the tensioning member are provided with annular grooves, and the circuit board a and the circuit board b are respectively sleeved in the grooves.

[0007] Furthermore, a positioning boss is provided at the bottom of the tensioning member, a positioning groove is provided on the inner wall of the controller housing, and the positioning boss is embedded in the positioning groove.

[0008] Furthermore, the cross-sections of the positioning groove and the positioning boss are arranged in an eight-shaped shape.

[0009] Furthermore, the positioning boss is arranged immediately below the bottom slot so that the circuit board b can be arranged in close contact with the inner wall of the controller housing.

[0010] Furthermore, the inner wall of the controller housing has a smooth fitting end surface, and the circuit board b is fitted on the fitting end surface.

[0011] Furthermore, at least two groups of tensioning openings are respectively formed at both ends of the tensioning member, and the tensioning opening at the bottom is formed inwardly along the end surface of the positioning boss.

[0012] Furthermore, the depth of the tightening opening at the upper end is lower than the upper slot position, and the depth of the tightening opening at the lower end is higher than the lower slot position, so that the tightening sheet at the upper and lower slot positions and the positioning boss can expand outward.

[0013] Furthermore, the sockets of the tensioner are, from top to bottom, an upper socket, a middle socket and a lower socket, wherein the diameters of the upper socket, the middle socket and the lower socket decrease in sequence.

[0014] Furthermore, the insert includes a pressing portion and an inserting portion, and a diameter of the inserting portion is smaller than a diameter of the upper insertion hole and larger than a diameter of the middle insertion hole.

[0015] The benefit of the present application lies in that the provided circuit board mounting structure realizes screwless installation of a dual circuit board controller, and through the cooperation of tensioners and inserts, the structure is relatively stable, while at the same time enabling the circuit board to fit tightly with the controller housing, thereby enhancing the heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of an embodiment of the circuit board installation structure of the electric vehicle controller of the present application;

[0017] Figure 2 for Figure 1 Schematic diagram of the structure of the middle tensioner;

[0018] Figure 3 for Figure 2 Cross-sectional view of the middle tensioner;

[0019] Figure 4 for Figure 1 Schematic diagram of the structure of the insert;

[0020] Figure 5 for Figure 1 Schematic diagram of the controller housing structure.

[0021] Marked in the figure: 10, controller housing, 101, positioning groove, 102, fitting end face, 11, circuit board a, 12, circuit board b, 13, tensioner, 131, jack, 1311, upper jack, 1312, middle jack, 1313, lower jack, 132, upper slot, 133, lower slot, 134, positioning boss, 135, upper block, 136, lower block, 137, tensioning opening, 14, insert, 141, pressing portion, 142, insert portion. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0023] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0024] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0025] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0026] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0027] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] See also Figure 1-5 The present embodiment provides a circuit board installation structure of an electric vehicle controller, including a controller housing 10, wherein a circuit board a11 and a circuit board b12 are arranged in the upper and lower parts of the controller housing 10, a tensioning member 13 is arranged between the upper and lower circuit boards, and a through-hole 131 is provided in the tensioning member 13 along its axial direction, the circuit board a is sleeved on the outer side of the upper part of the tensioning member, the circuit board b is sleeved on the outer side of the lower part of the tensioning member, the bottom of the tensioning member is plugged into the inner wall of the controller housing, an insert 14 is arranged in the plug hole, when the insert 14 is inserted into the plug hole 131, the upper and lower ends of the tensioning member 13 are expanded so that the upper and lower ends thereof are simultaneously in contact with the circuit board a, the circuit board b and the inner wall of the controller housing, the number of the tensioning members 13 can be set according to the size of the circuit board, and four groups are arranged in the present embodiment and are respectively arranged at the four corners of the circuit board.

[0029] After the circuit board is fixed by the tensioner 13, the tensioner needs to be connected to the controller housing 10 to ensure the stable installation of the circuit board. A positioning boss 134 is provided at the bottom end of the tensioner 13, and a positioning groove 101 is provided on the inner wall of the controller housing 10. The positioning boss 134 is embedded in the positioning groove 101, so that the two circuit boards can be fixedly installed in the controller housing. More specifically, the tensioner 13 is constructed as a cylindrical structure, and an annular step is provided on its upper part. Two groups of upper clamping blocks 135 are provided above the step, and an upper clamping groove 132 is formed between the upper clamping block 135 and the step. Two groups of lower clamping blocks 136 are provided at the lower part of the tensioner, and a lower clamping groove 133 is formed between the lower clamping block 136 and the upper end surface of the positioning boss 134, wherein the outer walls of the upper clamping block 135 and the lower clamping block 136 are both arc-shaped surfaces, so as to facilitate the installation of the circuit board.

[0030] Mounting holes are respectively provided on circuit board a and circuit board b. The diameter of the mounting hole of circuit board a is slightly smaller than the diameter of the cylinder formed by the two upper clamping blocks 135. The diameter of the cylinder formed by the two upper clamping blocks 135 is consistent with the diameter of the tensioning member 13. The diameter of the mounting hole of circuit board b is slightly larger than the diameter of the cylinder formed by the two lower clamping blocks 136. When the circuit board needs to be installed or removed, it can be achieved by cooperating with the upper and lower sets of tensioning openings 137.

[0031] Preferably, the positioning boss 134 and the positioning groove 101 are roughly arranged in an "eight"-shaped structure, and the positioning boss 134 is roughly constructed as a truncated cone structure. When the insert 14 is pressed down, the positioning boss and the positioning groove can be tightly fitted, thereby ensuring stable installation of the circuit board.

[0032] In order to expand both the upper and lower ends of the tensioning member 13, two sets of tensioning openings 137 are respectively opened at the upper and lower ends of the tensioning member, and the upper tensioning opening and the lower tensioning opening are relatively arranged so that the tensioning plate and the positioning boss 134 where the upper clamping slot 132 and the lower clamping slot 133 are located can expand outward, and the opening depth of the tensioning opening 137 can meet the above-mentioned expansion conditions. Generally speaking, the depth of the upper tensioning opening is lower than the bottom position of the upper clamping slot 132, and the depth of the lower tensioning opening is higher than the top position of the lower clamping block 136.

[0033] More specifically, the socket 131 of the tensioning member is composed of an upper socket 1311, a middle socket 1312 and a lower socket 1313 from top to bottom, wherein the diameters of the upper socket, the middle socket and the lower socket decrease in sequence, so as to ensure that they can expand outward when the insert is inserted. The tensioning member 13 is made of plastic or rubber.

[0034] The insert 14 includes a pressing portion 141 and an inserting portion 142. The length of the inserting portion 142 is roughly consistent with the length of the tensioner's socket 131. The diameter of the inserting portion is smaller than the diameter of the upper socket 1311 and larger than the diameter of the middle socket 1312. At the same time, in order to facilitate the insertion of the insert, a larger opening is opened at the top of the socket 131.

[0035] Circuit board b is an aluminum-based power board. During the use of the controller, the circuit board b needs to be cooled. The inner wall of the controller housing 10 except for the positioning groove 101 is constructed as a smooth fitting end surface 102. The circuit board b is fitted on the fitting end surface 102. Therefore, the controller housing adopts an aluminum profile shell to facilitate heat conduction to the circuit board b. When the insert is pressed down, due to the downward pressure, the cooperation of the lower block 136 can further make the circuit board b fit tightly with the fitting end surface 102, thereby improving the heat dissipation effect.

[0036] During installation, first install circuit board b. Since the diameter of the mounting hole of circuit board b is larger, it can be directly stuck in the lower card slot 133. If circuit board b needs to be taken out, due to the plastic structure adopted by the tensioning member 13, it can be easily taken out through the tensioning opening 137. After the installation of circuit board b is completed, install circuit board a. Since the diameter of the mounting hole on circuit board a is smaller than the diameter of the upper card block 135, it is necessary to match it through the tensioning opening above. Circuit board a can be installed in the upper card slot 132. After the installation of the two circuit boards is completed, the above-mentioned installed structure is installed in the positioning groove 101. Finally, the insert 14 is inserted into the jack 131 to fix the tensioning member 13. The controller housing 10 has an end cover. After the above-mentioned installation steps are completed, the end cover can be fixed.

[0037] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A circuit board mounting structure for an electric vehicle controller, comprising a controller housing, wherein a circuit board a and a circuit board b are arranged in the upper and lower parts of the controller housing, characterized in that: The mounting structure further comprises: The tensioning member has a through hole formed in the axial direction thereof, the circuit board a is sleeved on the outer side of the upper part of the tensioning member, the circuit board b is sleeved on the outer side of the lower part of the tensioning member, and the bottom of the tensioning member is plugged into the inner wall of the controller housing; The insert is movably inserted into the jack of the tensioner. When the insert is inserted into the jack, the upper and lower ends of the tensioner expand to simultaneously abut against the circuit board a, the circuit board b and the inner wall of the controller housing.

2. The circuit board mounting structure of the electric vehicle controller according to claim 1, characterized in that: The upper part and the bottom part of the tensioning member are provided with annular slots, and the circuit board a and the circuit board b are respectively sleeved in the slots.

3. The circuit board mounting structure of the electric vehicle controller according to claim 2, characterized in that: A positioning boss is arranged at the bottom of the tensioning member, a positioning groove is arranged on the inner wall of the controller housing, and the positioning boss is embedded in the positioning groove.

4. The circuit board mounting structure of the electric vehicle controller according to claim 3, characterized in that: The cross sections of the positioning groove and the positioning boss are arranged in an eight-shaped shape.

5. The circuit board mounting structure of the electric vehicle controller according to claim 4, characterized in that: The positioning boss is arranged immediately below the bottom slot so that the circuit board b can be fitted with the inner wall of the controller housing.

6. The circuit board mounting structure of the electric vehicle controller according to claim 5, characterized in that: The inner wall of the controller housing has a smooth fitting end surface, and the circuit board b is fitted on the fitting end surface.

7. The circuit board mounting structure of the electric vehicle controller according to claim 3, characterized in that: At least two groups of tightening openings are respectively formed at two ends of the tightening member, and the tightening opening at the bottom is formed inwardly along the end surface of the positioning boss.

8. The circuit board mounting structure of the electric vehicle controller according to claim 7, characterized in that: The depth of the tightening opening at the upper end is lower than the upper slot position, and the depth of the tightening opening at the lower end is higher than the lower slot position, so that the tightening sheet and the positioning boss at the upper and lower slot positions can expand outward.

9. The circuit board mounting structure of the electric vehicle controller according to claim 1, characterized in that: The sockets of the tensioner are an upper socket, a middle socket and a lower socket from top to bottom, wherein the diameters of the upper socket, the middle socket and the lower socket decrease in sequence.

10. The circuit board mounting structure of the electric vehicle controller according to claim 9, characterized in that: The inserting member includes a pressing portion and an inserting portion, wherein a diameter of the inserting portion is smaller than a diameter of the upper insertion hole and larger than a diameter of the middle insertion hole.

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