CN212486960U

CN212486960U - Controller of electric vehicle

Info

Publication number: CN212486960U
Application number: CN202021393883.4U
Authority: CN
Inventors: 顾挺; 陈昌进
Original assignee: ZHANGJIAGANG CASS SEMICONDUCTOR CO Ltd; Zhangjiagang Kaicheng Software Technology Co ltd; Jiangsu Xiechang Electronic Technology Co ltd
Current assignee: ZHANGJIAGANG CASS SEMICONDUCTOR CO Ltd; Zhangjiagang Kaicheng Software Technology Co ltd; Jiangsu Xiechang Electronic Technology Co ltd
Priority date: 2020-07-15
Filing date: 2020-07-15
Publication date: 2021-02-05
Anticipated expiration: 2030-07-15

Abstract

The utility model discloses an electric vehicle controller belongs to electric motor car technical field, for solving the inconvenient scheduling problem design of fixed shell fragment dismouting among the current structure. The utility model discloses electric vehicle controller is including the heat dissipation shell that has the holding cavity, base plate, control assembly, flexible glue spare and PMKD have set gradually in the holding cavity, PMKD passes through the fastener and is connected to the heat dissipation shell, is provided with stereoplasm elastic component between control assembly and PMKD, and the elasticity power is applyed to the control assembly at the back of control assembly and bulldozing of PMKD to the stereoplasm elastic component laminating, and control assembly and base plate laminate under the promotion of elasticity power on the heat dissipation shell. The utility model discloses electric vehicle controller utilizes PMKD to install fixed stereoplasm elastic component, and the dismouting is more convenient, has left out the installation die cavity on the heat dissipation shell among the current structure, has reduced the manufacturing degree of difficulty and the manufacturing cost of heat dissipation shell, has improved the machining efficiency of heat dissipation shell.

Description

Controller of electric vehicle

Technical Field

The utility model relates to an electric motor car technical field especially relates to an electric vehicle controller.

Background

An electric vehicle is a convenient and efficient transportation tool, and a controller is usually arranged on the electric vehicle and used for controlling a plurality of electronic devices of the electric vehicle. The controller mainly comprises a heat dissipation shell, a circuit assembly, a soft rubber piece and a fixed bottom plate, wherein the circuit assembly, the soft rubber piece and the fixed bottom plate are sequentially arranged in a concave cavity of the heat dissipation shell.

In the conventional controller, the fixing base plate is usually abutted against the back surface of the circuit module through a soft rubber member, so that the circuit module can be more closely attached to the inner surface of the heat dissipation housing. However, due to the reason of processing the structure, a gap exists between the fixed base plate and the soft rubber piece, so that the pushing force of the fixed base plate on the circuit assembly is insufficient, the circuit assembly is not contacted with the heat dissipation shell tightly, and the heat dissipation effect is poor.

To solve this problem, there are two methods: one method is that silica gel is filled in a gap between a soft rubber piece and a fixed bottom plate, after the silica gel completely fills the gap between the soft rubber piece and the fixed bottom plate, the fixed bottom plate can be completely abutted against the back surface of a circuit assembly through the soft rubber piece and pushes the circuit assembly until the circuit assembly is completely attached to the inner surface of a heat dissipation shell; the method has the defects that the requirement on the used silica gel material is high, and the silica gel material needs to have good high-temperature resistance; the requirement on the processing precision is high, the amount of filled silica gel and the thickness of a formed silica gel structure need to be strictly controlled, when the thickness is too small, the fixed bottom plate cannot push the circuit assembly to be completely attached to the inner surface of the heat dissipation shell, and when the thickness is too large, hard contact can occur between the fixed bottom plate and the circuit assembly, and the circuit assembly can be damaged.

The other method is that an installation cavity is arranged on the radiating shell, a fixed elastic sheet is pressed on the outer side of the soft rubber piece and clamped in the installation cavity, the soft rubber piece and the circuit assembly are tightly pressed by the fixed elastic sheet, the circuit assembly is tightly attached to the inner surface of the radiating shell, and then a bottom plate is arranged on the outer side of the fixed elastic sheet. The bottom plate does not contact with the fixed elastic sheet, and the bottom plate only plays a waterproof role. The structure has the defects that when the controller fails and needs to be repaired, the fixed elastic sheet needs to be disassembled first, and the clamped fixed elastic sheet is easy to deform or even scrap after being disassembled, so that the cost is increased; and the heat dissipation shell needs to be processed to form an installation cavity, so that the processing difficulty is improved, and the processing efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a stereoplasm elastic component easy dismounting's electric vehicle controller.

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

the utility model provides an electric vehicle controller, is including the heat dissipation shell that has the holding cavity, base plate, control assembly, soft rubber spare and PMKD have set gradually in the holding cavity, PMKD passes through the fastener and is connected to the heat dissipation shell control assembly with be provided with stereoplasm elastic component between the PMKD, the laminating of stereoplasm elastic component is in control assembly's the back just is in PMKD bulldoze down to elastic force is applyed to control assembly, control assembly with the base plate is in laminating under elastic force's the promotion on the heat dissipation shell.

Particularly, the control assembly comprises a circuit board and a plurality of power tubes arranged on the circuit board, and the hard elastic piece abuts against the power tubes.

Particularly, the hard elastic piece comprises a strip-shaped elastic piece main body and a plurality of groups of elastic edges arranged on the elastic piece main body, and the elastic edges subjected to heat treatment can apply thrust to the power tube when abutting against the power tube.

In particular, each power tube abuts a set of said resilient edges.

Particularly, the elastic edge is a warping structure which is formed by punching the upper part of the elastic piece main body and protrudes out of the surface of the elastic piece main body.

In particular, the buckling structures are formed on the middle or opposite side edges of the elastic member main body.

Particularly, the elastic edge comprises two elastic sheets which are oppositely bent.

In particular, the thickness of the hard elastic member is greater than the height of the gap between the control assembly and the fixed base plate.

Particularly, a positioning through hole is formed in the soft rubber piece, and the hard elastic piece is positioned in the positioning through hole; the fixed bottom plate is provided with a bottom plate convex edge matched with the positioning through hole, and the hard elastic piece is positioned at the top of the bottom plate convex edge.

In particular, the heat dissipation housing is made of a metal material; and/or the substrate is an insulating film or an aluminum substrate.

The hard elastic piece is arranged between the control component and the fixed bottom plate of the electric vehicle controller, the control component and the base plate are attached to the heat dissipation shell under the pushing of the elastic force, and the heat dissipation effect is good; utilize PMKD to install fixed stereoplasm elastic component, left out the installation die cavity on the heat dissipation shell among the current structure, reduced the manufacturing degree of difficulty and the manufacturing cost of heat dissipation shell, improved the machining efficiency of heat dissipation shell, the dismouting of stereoplasm elastic component is more convenient moreover, unscrew the fastener, can dismantle stereoplasm elastic component after lifting PMKD off, solved and dismantled fixed shell fragment and press easily to lead to its deformation even condemned problem among the current structure. The electric vehicle controller has more reasonable internal layout and more compact structure; the hard elastic piece has elasticity, and causes the control assembly to generate hard damage when the control assembly is pressed.

Drawings

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

fig. 2 is a top view of an electric vehicle controller according to an embodiment of the present invention;

FIG. 3 is a sectional view taken along line A-A of FIG. 2;

fig. 4 is an exploded view of an electric vehicle controller according to an embodiment of the present invention;

fig. 5 is a second exploded view of the electric vehicle controller according to the embodiment of the present invention;

fig. 6 is a third exploded view of the electric vehicle controller according to the embodiment of the present invention;

fig. 7 and fig. 9 to fig. 11 are schematic structural views of a hard elastic member according to an embodiment of the present invention;

fig. 8 is a side view of the hard elastic member shown in fig. 7.

In the figure:

1. a heat dissipation housing; 2. a substrate; 4. a soft rubber member; 5. fixing the bottom plate; 6. a fastener; 7. a hard elastic member; 11. a housing fixing hole; 31. a circuit board; 32. a power tube; 41. positioning the through hole; 42. reinforcing ribs; 43. a limiting notch; 51. bottom plate ribs; 71. an elastic member body; 72. an elastic edge; 73. an arc-shaped edge; 74. and (7) limiting the edge.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

The present embodiment discloses an electric vehicle controller. As shown in fig. 1 to 6, the electric vehicle controller includes a heat dissipation housing 1 made of a metal material and having an accommodating cavity, and a substrate 2, a control assembly, a soft rubber 4 and a fixed base plate 5 are sequentially disposed in the accommodating cavity. Wherein, the substrate 2 is an insulating film or an aluminum substrate; the fixing base plate 5 is connected to the housing fixing hole 11 of the heat dissipation housing 1 through the fastener 6, so that all structures between the fixing base plate 5 and the heat dissipation housing 1 are in a compressed state, and in addition, the fixing base plate 5 after being fastened and installed has a waterproof effect. A hard elastic member 7 is arranged between the control assembly and the fixed bottom plate 5, the hard elastic member 7 is attached to the back of the control assembly and applies elastic force to the control assembly under the pushing of the fixed bottom plate 5, and the control assembly and the substrate 2 are attached to the heat dissipation shell 1 under the pushing of the elastic force.

Utilize stereoplasm elastic component 7 to exert bulldozing force to the control assembly, guarantee that the control assembly can closely laminate on the internal surface of heat dissipation shell 1, the radiating effect is good. Utilize PMKD 5 to install fixed stereoplasm elastic component 7, the installation die cavity on the heat dissipation shell 1 among the existing structure has been left out, the manufacturing degree of difficulty and the manufacturing cost of heat dissipation shell 1 have been reduced, the machining efficiency of heat dissipation shell 1 has been improved, and the dismouting of stereoplasm elastic component 7 is more convenient moreover, unscrew fastener 6, can dismantle stereoplasm elastic component 7 after lifting PMKD 5 down, it leads to its deformation even condemned problem to dismantle fixed shell fragment easily among the existing structure to have been solved. The electric vehicle controller has more reasonable internal layout and more compact structure; the hard elastic member 7 has elasticity, and does not cause hard damage to the control unit when the control unit is pressed.

The specific structure of the control assembly is not limited, and the control function can be realized. Preferably, the control assembly comprises a circuit board 31 (PCB), a plurality of needle bases, wire holders and a plurality of power tubes 32 are arranged on one surface of the circuit board 31 facing the heat dissipation housing 1, and the hard elastic member 7 abuts against the power tubes 32. A needle seat opening is formed in the position, corresponding to the needle seat, of the heat dissipation shell 1, a wire connecting seat opening is formed in the position, corresponding to the wire connecting seat, of the heat dissipation shell, the power tubes 32 are horizontally arranged on the circuit board 31 side by side, and main bodies of the power tubes 32 extend out of the side edge of the circuit board 31; the wire holder is connected with the needle seat through a hard wire, the processing operation is simple, and the voltage and the current are stable.

The heat dissipation surface of the power tube 32 faces the heat dissipation case 1, the heat dissipation surface of the power tube 32 is attached to the insulating film or the aluminum substrate, and the insulating film or the aluminum substrate is in contact with the heat dissipation case 1 to realize heat conduction. The hard elastic member 7 is arranged at a position just aligned with the power tube 32, and the hard elastic member 7 is pressed against the power tube 32 after installation.

In order to avoid the hard elastic piece 7 from being displaced laterally and dislocated with the power tube 32, a positioning through hole 41 may be formed in the soft elastic piece 4 (that is, the position of the soft elastic piece 4 corresponding to the hard elastic piece 7 is of a hollow structure), a bottom plate protruding rib 51 aligned with the positioning through hole 41 is formed in the fixed bottom plate 5, after the installation, the hard elastic piece 7 is located at the top of the bottom plate protruding rib 51 and located in the positioning through hole 41, and the side edges of the bottom plate protruding rib 51 and the positioning through hole 41 jointly play a role in limiting the hard elastic piece 7. Certainly, the hard elastic piece 7 and the soft elastic piece 4 can be made into an integrated structure, so that the relative position of the hard elastic piece 7 and the soft elastic piece 4 is fixed, the power tube 32 is more stably installed, and the heat dissipation effect is better.

In view of the thin overall soft rubber 4, it is difficult for both side edges of the positioning through-hole 41 to maintain the shape. Especially, when the positioning through hole 41 is long, the deformation of the soft rubber 4 at the positioning through hole 41 is more obvious. Preferably, a reinforcing rib 42 is formed on the soft rubber 4, and two ends of the reinforcing rib 42 are spanned on two side edges of the positioning through hole 41, so that the side edge of the positioning through hole 41 is pulled to make the positioning through hole 41 not deformed; meanwhile, the reinforcing ribs 42 can limit the hard elastic member 7 from the top, so that the hard elastic member 7 is prevented from excessively pressing the power tube 32, and the power tube 32 is prevented from being damaged due to the strong pressing of the hard elastic member 7.

On the basis of the structure, the thickness of the hard elastic member 7 is slightly larger than the height of the gap between the control assembly and the fixed bottom plate 5, for example, the height of the gap between the control assembly and the fixed bottom plate 5 is 2 mm, the thickness of the hard elastic member 7 is 3 mm, and the gap between the control assembly and the fixed bottom plate 5 is just filled after the hard elastic member 7 is subjected to moderate elastic deformation.

The concrete structure of the hard elastic member 7 is not limited, and the hard elastic member can be used for jacking the control assembly. Preferably, as shown in fig. 7 to 11, the hard elastic member 7 includes a strip-shaped elastic member main body 71 and a plurality of sets of elastic edges 72 disposed on the elastic member main body 71, and the elastic edges 72 have better elasticity after heat treatment, so that the elastic edges 72 can apply more ideal pushing force to the power tube 32 when abutting against the power tube 32.

The elastic edge 72 is a warped structure protruding from the surface of the elastic member main body 71 and formed by stamping at a part of the upper portion of the elastic member main body 71. In the structure shown in fig. 7 to 9, the buckling structure is formed in the middle of the elastic member main body 71, and the curved sides 73 and the stopper sides 74 are formed at both sides of the elastic member main body 71 in the extending direction. Accordingly, the limit notches 43 are provided at both ends of the soft rubber 4 at the positioning through hole 41, and the limit edges 74 are caught in the limit notches 43 after installation, thereby preventing the elastic member main body 71 from moving in the extending direction thereof. The warping direction of the arc-shaped edge 73 is the same as that of the elastic edge 72, and the arc-shaped edge 73 can provide supporting force for the elastic edge 72, so that the elastic edge 72 is guaranteed to have better elastic force. In order to simplify the processing process and not affect the elastic force, the elastic edge 72 includes two elastic pieces bent oppositely, and the two elastic pieces form a broken bridge shape.

Of course, the buckling structures may be formed on the opposite side edges of the elastic member main body 71, as shown in fig. 11, and may also serve to press the power tube 32. It is also possible to fold the spring body 71 into a wave or square wave configuration, as shown in fig. 10, which functions in the same manner as the buckling structure.

In order to ensure the reliability of the whole device, each power tube 32 abuts against a group of elastic edges 72, and the one-to-one pressing ensures that each power tube 32 can obtain enough supporting force. The total number of the elastic edges 72 can be more than the total number of the power tubes 32, and after the power tubes are installed, redundant elastic edges 72 are still arranged at two ends of the whole row of the power tubes 32.

It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims

1. The utility model provides an electric vehicle controller, is including heat dissipation shell (1) that has the holding cavity, base plate (2), control assembly, soft rubber spare (4) and PMKD (5) have set gradually in the holding cavity, PMKD (5) are connected to through fastener (6) heat dissipation shell (1), its characterized in that control assembly with be provided with stereoplasm elastic component (7) between PMKD (5), stereoplasm elastic component (7) laminating is in control assembly's the back and be in PMKD (5) bulldoze down to elastic force is applyed to control assembly, control assembly with base plate (2) are in the laminating is in under the promotion of elastic force on heat dissipation shell (1).

2. The electric vehicle controller according to claim 1, characterized in that the control assembly comprises a circuit board (31) and a plurality of power tubes (32) arranged on the circuit board (31), and the hard elastic member (7) abuts on the power tubes (32).

3. The electric vehicle controller according to claim 2, wherein the hard elastic member (7) comprises a strip-shaped elastic member main body (71) and a plurality of groups of elastic edges (72) arranged on the elastic member main body (71), and the heat-treated elastic edges (72) can apply thrust to the power tubes (32) when abutting against the power tubes (32).

4. An electric vehicle controller according to claim 3, characterised in that each power tube (32) abuts a set of said resilient edges (72).

5. The electric vehicle controller according to claim 3, characterized in that the elastic edge (72) is a warped structure protruding from the surface of the elastic member main body (71) and formed by stamping at a partial position on the elastic member main body (71).

6. The electric vehicle controller according to claim 5, characterized in that the buckling structure is formed on a middle portion or opposite side edges of the spring main body (71).

7. The electric vehicle controller according to claim 6, characterized in that the elastic edge (72) comprises two elastic sheets bent oppositely.

8. An electric vehicle controller according to any one of claims 1-7, characterized in that the thickness of the hard elastic member (7) is greater than the gap height between the control assembly and the fixed floor (5).

9. The electric vehicle controller according to any one of claims 1 to 7, characterized in that the soft rubber member (4) is provided with a positioning through hole (41), and the hard elastic member (7) is positioned in the positioning through hole (41); the fixed bottom plate (5) is provided with a bottom plate convex rib (51) matched with the positioning through hole (41), and the hard elastic piece (7) is positioned at the top of the bottom plate convex rib (51).

10. The electric vehicle controller according to any one of claims 1 to 7, characterized in that the heat-dissipating housing (1) is made of a metallic material; and/or the substrate (2) is an insulating film or an aluminum substrate.