CN212628877U

CN212628877U - Controller

Info

Publication number: CN212628877U
Application number: CN202021618807.9U
Authority: CN
Inventors: 刘双林
Original assignee: TIANJIN SANTROLL ELECTRIC SCIENCE & TECHNOLOGY CO LTD
Current assignee: TIANJIN SANTROLL ELECTRIC SCIENCE & TECHNOLOGY CO LTD
Priority date: 2020-08-06
Filing date: 2020-08-06
Publication date: 2021-02-26
Anticipated expiration: 2030-08-06

Abstract

The utility model relates to the technical field of electronic control, and discloses a controller, which comprises a shell, an interface terminal and an electronic device arranged in the shell, wherein one end of the interface terminal is connected with the shell and is exposed out of the shell, and the other end of the interface terminal is connected with the electronic device; the shell is filled with filling glue, so that all electronic devices are wrapped in the filling glue, and the shell is provided with a drain hole which is communicated with the inner cavity of the shell and is not sealed by the filling glue and is used for draining water entering the shell through a gap between the interface terminal and the shell. The utility model discloses utilize the filling to glue and seal up electronic device, improved electronic device's sealed effect, guarantee that the controller normally works. Even outside water gets into in the casing through the gap between casing and the interface terminal, also can be through in time discharging through the wash port with the water in the casing, avoid the filling glue to soak in aqueous for a long time.

Description

Controller

Technical Field

The utility model relates to an electronic control technical field especially relates to a controller.

Background

The common controller comprises a shell, a circuit board arranged in the shell and an external terminal for connecting the circuit board and an interface terminal, wherein the external terminal is connected with a wiring harness, one end of the interface terminal is welded with the circuit board through a contact pin, and the other end of the interface terminal is spliced with the external terminal.

In order to ensure the normal operation of the circuit board, waterproof treatment is required. In a conventional waterproof method, a seal ring is disposed at a connection position between an interface terminal and a printed circuit board to prevent water from entering a housing. When being applied to shared bicycle with above-mentioned controller etc. there is the oscillateing about the in-process that shared bicycle went, and the pencil can drive external terminal and rock to make the sealed effect of sealing washer can the variation, so that probably have a small amount of water to get into in the casing, thereby influence the performance of circuit board.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a controller can improve the water-proof effects of circuit board.

To achieve the purpose, the utility model adopts the following technical proposal:

a controller comprises a shell, an interface terminal and an electronic device arranged in the shell, wherein one end of the interface terminal is connected with the shell and exposed out of the shell, and the other end of the interface terminal is connected with the electronic device;

the shell is filled with filling glue, so that the electronic devices are completely wrapped in the filling glue, and the shell is provided with a drain hole which is communicated with the inner cavity of the shell and is not sealed by the filling glue and is used for draining water entering the shell through a gap between the interface terminal and the shell.

As a preferable technical solution of the above controller, the electronic device includes a circuit board, one end of the circuit board abuts against an inner bottom wall of the housing;

the interface terminal comprises a positioning plate and a plurality of contact pins which penetrate through the positioning plate and are integrated with the positioning plate, one ends of the contact pins are welded on the circuit board, the other ends of the contact pins are connected with external terminals, one side of the positioning plate is provided with a plurality of positioning columns which are distributed in the circumferential direction and are connected with the circuit board in an inserting mode, and the other side of the positioning plate is provided with a plurality of limiting plates which are distributed in the circumferential direction;

the outer wall of reference column is formed with the butt in the ladder face of circuit board, be equipped with the wearing and tearing hole on the roof of casing, the inner wall in wearing and tearing hole be equipped with the spacing groove of limiting plate one-to-one, the free end of limiting plate inserts correspondingly spacing inslot and butt in the diapire of spacing groove, with will interface terminal presss from both sides and locates the circuit board with between the diapire.

As a preferable technical solution of the above controller, the positioning plate is a flat plate structure, and a space communicated with the drain hole is provided between a side surface of the positioning plate facing the bottom wall and a side surface of the through hole facing the circuit board.

As a preferable technical solution of the above controller, a wire clamp is provided on an outer top wall of the housing, and is used for limiting a wire harness connected to the external terminal.

As a preferred technical solution of the above controller, the plurality of contact pins are divided into at least two contact pin groups, each of the positioning plates is convexly provided with a plugging portion which is in one-to-one correspondence with the contact pin group and is provided with a groove, and a free end of the contact pin of each contact pin group extends into the groove;

the cross-sectional shapes of the different plug parts are different so as to prevent fool.

As a preferred technical solution of the above controller, the external terminals correspond to the grooves one to one, and each external terminal is in insertion fit with the corresponding groove and the corresponding pin in the pin group;

and a sealing ring is arranged between the inner wall of the groove and the external terminal.

As a preferred technical solution of the above controller, the external terminals correspond to the grooves one by one, and each external terminal is in insertion fit with the outer wall of the corresponding insertion part and the corresponding pin in the pin group;

and a sealing ring is arranged between the outer wall of the insertion part and the external terminal.

As an optimal technical scheme of the controller, at least two first reinforcing ribs distributed circumferentially are convexly arranged on the outer wall of the positioning column, and the same end of each first reinforcing rib is flush arranged to form the step surface.

As a preferable technical solution of the above controller, the interface terminal further includes a second reinforcing rib connecting the positioning plate and the limiting plate.

As a preferable technical solution of the controller, the external terminal has an L-shaped structure.

The utility model has the advantages that: the utility model discloses utilize the filling to glue and seal up electronic device, improved electronic device's sealed effect, guarantee that the controller normally works. Even outside water gets into in the casing through the gap between casing and the interface terminal, also can be through in time discharging through the wash port with the water in the casing, avoid the filling glue to soak in aqueous for a long time.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a controller according to an embodiment of the present invention;

fig. 2 is an exploded view of a controller provided by an embodiment of the present invention;

fig. 3 is a schematic structural diagram of an interface terminal according to an embodiment of the present invention;

fig. 4 is a schematic diagram of an external terminal connected with a wire harness according to an embodiment of the present invention;

fig. 5 is a schematic partial structural diagram of a controller according to an embodiment of the present invention.

In the figure:

1. a housing; 11. an upper cover; 111. wire clamps; 112. perforating holes; 113. a limiting groove; 114. a bottom wall; 115. a clamping hole; 12. a base; 121. clamping convex;

2. a circuit board;

4. an interface terminal; 41. positioning a plate; 42. a positioning column; 43. a first reinforcing rib; 44. a limiting plate; 45. a second reinforcing rib; 46. a plug-in part; 47. inserting a pin; 48. a groove;

5. an external terminal; 51. a sealing groove;

6. a wire harness; 7. a power component; 8. a clamp spring; 9. a heat conducting plate.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements related to the present invention are shown in the drawings.

As shown in fig. 1 to fig. 3, the present embodiment provides a controller, which includes a housing 1, an interface terminal 4 and an electronic device disposed in the housing 1, wherein one end of the interface terminal 4 is connected to the housing 1 and exposed out of the housing 1, and the other end is connected to the electronic device; the shell 1 is filled with filling glue, so that all electronic devices are wrapped in the filling glue, and the shell 1 is provided with a drain hole which is communicated with the inner cavity of the shell and is not sealed by the filling glue and is used for draining water entering the shell 1 through a gap between the interface terminal 4 and the shell 1.

This embodiment utilizes the filling glue to seal electron device, has improved electron device's sealed effect, prevents that electron device contact water from damaging and shortening life because of permanent cold and hot impact, guarantees that the controller normally works. Even if external water enters the housing 1 through a gap between the housing 1 and the interface terminal 4, the water in the housing 1 can be discharged through the water discharge hole in time, so that the potting adhesive is prevented from being soaked in the water for a long time.

Specifically, the housing 1 includes an upper cover 11 and a base 12, the upper cover 11 is clamped with the base 12, specifically, a clamping hole 115 is formed in the upper cover 11, a clamping protrusion 121 is formed in the base 12, the clamping hole 115 and the clamping protrusion 121 are in insertion fit, so that the upper cover 11 is connected to the base 12 and a mounting cavity is formed, and the electronic device is mounted in the mounting cavity. Preferably, the upper cover 11 is made of plastic material, and the base 12 is made of metal material by die-casting.

It should be noted that, when the controller is installed, the drain holes need to be arranged reasonably to facilitate draining of water in the housing 1, so as to avoid water entering the housing 1 from accumulating in the housing.

Further, the electronic device includes a circuit board 2, and one end of the circuit board 2 abuts against the inner bottom wall of the base 12. Specifically, a power component 7 is disposed on a side of the circuit board 2 facing away from the interface terminal 4, a pin of the power component 7 is soldered to the circuit board 2, and the circuit board 2 abuts against an inner bottom wall of the base 12 through the snap spring 8. More specifically, the clamp spring 8 is provided with abutting portions corresponding to the power components 7 one to one, the circuit board 2 is provided with through holes corresponding to the abutting portions one to one, each abutting portion penetrates through the corresponding through hole and abuts against one side, facing the circuit board 2, of the power components 7, the power components 7 and the base 12 are connected through screws, and therefore the circuit board 2 abuts against the inner bottom wall of the base 12.

Since the power component 7 generates a large amount of heat during the operation of the controller, a heat conducting plate 9 is interposed between the circuit board 2 and the inner bottom wall of the base 12 in order to ensure the normal operation of the power component 7. The heat generated by the power component 7 is transmitted to the external atmosphere through the heat conducting plate 9 and the base 12, and the base 12 is made of metal materials and has good heat conducting performance.

The interface terminal 4 comprises a positioning plate 41 and a plurality of contact pins 47 which penetrate through the positioning plate 41 and are integrally arranged with the positioning plate 41, one end of each contact pin 47 is welded on the circuit board 2, the other end of each contact pin 47 is connected with the external terminal 5, one side of the positioning plate 41 is provided with a plurality of positioning columns 42 which are circumferentially arranged and are connected with the circuit board 2 in an inserting manner, and the other side of each positioning plate 41 is provided with a plurality of limiting plates 44; the outer wall of the positioning column 42 is formed with a stepped surface abutting against the circuit board 2, the top wall of the upper cover 11 is provided with a through hole 112, the inner wall of the through hole 112 is provided with a limiting groove 113 corresponding to the limiting plate 44 one by one, the free end of the limiting plate 44 is inserted into the corresponding limiting groove 113 and abuts against the bottom wall 114 of the limiting groove 113, so as to clamp the interface terminal 4 between the circuit board 2 and the bottom wall 114 of the limiting groove 113.

The limiting groove 113 is matched with the corresponding limiting plate 44, so that the limiting plate 44 is abutted against the bottom wall 114 of the limiting groove 113 to limit the limiting plate 44, and the limiting plate 44 is prevented from being separated from the through hole 112; meanwhile, the positioning column 42 and the circuit board 2 are inserted and matched, the stepped surface on the positioning column 42 abuts against the circuit board 2, so that the positioning column 42 is limited, the interface terminal 4 is clamped between the circuit board 2 and the bottom wall 114 of the limiting groove 113, the circuit board 2 abuts against the inner bottom wall of the base 12, when the external terminal 5 connected with the interface terminal 4 shakes, the interface terminal 4 can be prevented from shaking relative to the circuit board 2 and the shell 1, and the stability of connection between the contact pin 47 and the circuit board 2 is improved.

Preferably, the interface terminal 4 further includes a second reinforcing rib 45 connecting the positioning plate 41 and the limiting plate 44. The coupling strength between the positioning plate 41 and the stopper plate 44 is improved by the second reinforcing ribs 45.

Further, a wire clip 111 is provided on an outer top wall of the housing 1 for limiting the wire harness 6 connected to the external terminal 5. Carry on spacingly to the pencil 6 of connecting in external terminal 5 through fastener 111, prevent that pencil 6 from rocking to avoid pencil 6 to drive interface terminal 4 through external terminal 5 and rock so that virtual joint or the scheduling problem that opens circuit appear in circuit board 2 and contact pin 47. In this embodiment, the external terminal 5 has an L-shaped structure, one end of the external terminal 5 is inserted into the interface terminal 4, and the other end is connected to the wire harness 6, so that the wire harness 6 is limited by the wire clamp 111.

In this embodiment, two interface terminals 4 are provided, and are respectively provided at two ends of the upper cover 11 in the longitudinal direction, wherein one interface terminal 4 is provided with four insertion portions 46, and the other interface terminal 4 is provided with two insertion portions 46.

Preferably, the positioning plate 41 is a flat plate structure, and a space communicated with the water discharge hole is provided between the side surface of the positioning plate 41 facing the bottom wall 114 of the limiting groove 113 and the side surface of the through hole 112 facing the circuit board 2. In case in the space that water gets into locating plate 41 and wear-to-establish hole 112 inner wall and enclose, water will get into in the casing 1 through above-mentioned interval to discharge through the wash port in time, because the water that gets into in the space that locating plate 41 and wear-to-establish hole 112 inner wall enclose is mostly the rainwater, and contains corrosive substance in the rainwater, adopts above-mentioned setting can avoid the long-time ponding of space spare that locating plate 41 and wear-to-establish hole 112 inner wall enclose to lead to the problem that locating plate 41 and casing 1 were corroded.

In this embodiment, the positioning plate 41 and the side of the positioning plate 41 facing the circuit board 2 are filled with sealant, and the drain holes are at least partially located on the housing 1 between the two opposite sidewalls of the positioning plate 41 to facilitate drainage.

Furthermore, the plurality of contact pins 47 are divided into at least two contact pin groups, each positioning plate 41 is convexly provided with an inserting part 46 which corresponds to the contact pin group one by one and is provided with a groove 48, and the free end of the contact pin 47 of each contact pin group extends into the groove 48; the cross-sectional shapes of the different plug portions 46 are different to prevent the external connection terminal 5 from being plugged to the wrong interface terminal 4. The cross-sectional shape of each plug 46 may be oval, trapezoidal, triangular, etc., and will not be described in detail. Preferably, the cross-sectional shape of the different grooves 48 is different.

Furthermore, the external terminals 5 correspond to the grooves 48 one by one, and each external terminal 5 is in insertion fit with the corresponding groove 48 and the corresponding pin 47 in the pin group; a sealing ring is arranged between the inner wall of the groove 48 and the external terminal 5. Specifically, as shown in fig. 4, the outer wall of the external terminal 5 is provided with a sealing groove 51, a sealing ring is arranged in the sealing groove 51, when the external terminal 5 is plugged into the corresponding plugging portion 46, the external terminal 5 and the inner wall of the groove 48 can be sealed by the sealing ring, and the water is prevented from entering through the gap between the external terminal 5 and the inner wall of the groove 48 and contacting the electric leakage phenomenon of the contact pin 47.

In other embodiments, a sealing groove 51 may be provided on an inner wall of the groove 48, and a sealing ring may be provided in the sealing groove 51 to seal between the external terminal 5 and the inner wall of the groove 48. In other embodiments, each external terminal 5 may be inserted and matched with the outer wall of the corresponding insertion portion 46 and the corresponding pin 47 in the pin group; a sealing ring is arranged between the outer wall of the plug-in part 46 and the external terminal 5.

Further, as shown in fig. 5, at least two first reinforcing ribs 43 arranged circumferentially are protruded from the outer wall of the positioning column 42, and the same end of each first reinforcing rib 43 is flush with the other end to form a stepped surface. First strengthening rib 43 not only has limiting displacement to the grafting between reference column 42 and the circuit board 2, can also improve reference column 42's intensity. Preferably, each positioning column 42 is provided with four first reinforcing ribs 43, and the four first reinforcing ribs 43 are arranged in a cross shape.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Claims

1. A controller comprises a shell (1), an interface terminal (4) and an electronic device arranged in the shell (1), and is characterized in that one end of the interface terminal (4) is connected to the shell (1) and exposed out of the shell (1), and the other end of the interface terminal is connected to the electronic device;

the shell (1) is filled with filling glue, so that the electronic devices are completely wrapped in the filling glue, and the shell (1) is provided with a drain hole which is communicated with the inner cavity of the shell and is not sealed by the filling glue and is used for draining water entering the shell (1) through a gap between the interface terminal (4) and the shell (1).

2. The controller according to claim 1, characterized in that the electronic device comprises a circuit board (2), one end of the circuit board (2) abuts against an inner bottom wall of the housing (1);

the interface terminal (4) comprises a positioning plate (41) and a plurality of contact pins (47) which penetrate through the positioning plate (41) and are integrated with the positioning plate (41), one ends of the contact pins (47) are welded on the circuit board (2), the other ends of the contact pins are connected with external terminals (5), one side of the positioning plate (41) is provided with a plurality of positioning columns (42) which are distributed in the circumferential direction and are connected with the circuit board (2) in an inserting mode, and the other side of the positioning plate (41) is provided with a plurality of limiting plates (44) which are distributed;

the outer wall of reference column (42) is formed with the butt in the ladder face of circuit board (2), be equipped with on the roof of casing (1) and wear to establish hole (112), the inner wall of wearing to establish hole (112) be equipped with limiting groove (113) of limiting plate (44) one-to-one, the free end of limiting plate (44) inserts correspondingly in limiting groove (113) and butt in diapire (114) of limiting groove (113), with interface terminal (4) press from both sides and locate circuit board (2) with between diapire (114).

3. The controller according to claim 2, wherein the positioning plate (41) is a flat plate structure, and a space communicated with the water discharge hole is arranged between the side surface of the positioning plate (41) facing the bottom wall (114) and the side surface of the through hole (112) facing the circuit board (2).

4. The controller according to claim 2, wherein a clip (111) is provided on an outer top wall of the housing (1) for restraining the wire harness (6) connected to the external terminal (5).

5. The controller according to claim 2, wherein a plurality of the pins (47) are divided into at least two pin groups, each positioning plate (41) is convexly provided with a plugging portion (46) which corresponds to the pin group in a one-to-one manner and is provided with a groove (48), and the free end of the pin (47) of each pin group extends into the groove (48);

the cross-sectional shapes of the plug parts (46) are different for fool-proofing.

6. The controller according to claim 5, wherein the external terminals (5) correspond to the grooves (48) one by one, and each external terminal (5) is in plug fit with the corresponding groove (48) and the corresponding pin (47) in the pin group;

and a sealing ring is arranged between the inner wall of the groove (48) and the external terminal (5).

7. The controller according to claim 5, wherein the external terminals (5) correspond to the grooves (48) one by one, and each external terminal (5) is in plug-in fit with the outer wall of the corresponding plug-in part (46) and the corresponding plug pin (47) in the plug pin group;

and a sealing ring is arranged between the outer wall of the inserting part (46) and the external terminal (5).

8. The controller according to claim 2, characterized in that the outer wall of the positioning column (42) is convexly provided with at least two first reinforcing ribs (43) which are circumferentially arranged, and the same end of each first reinforcing rib (43) is flush with each other to form the stepped surface.

9. The controller according to claim 2, wherein the interface terminal (4) further comprises a second reinforcing rib (45) connecting the positioning plate (41) and the limiting plate (44).

10. A controller according to claim 2, wherein the external connection terminal (5) is of L-shaped configuration.