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CN-224233971-U - Controller shell and motor controller

CN224233971UCN 224233971 UCN224233971 UCN 224233971UCN-224233971-U

Abstract

The application relates to the technical field of motor controllers, in particular to a controller shell and a motor controller. The controller shell comprises a shell body, an upper cover and a plurality of elastic members, wherein the elastic members comprise elastic pieces, the shell body comprises a shell body and a shell partition wall, one side of the shell body is opened, the shell partition wall is connected with the shell body to divide the interior of the shell body into a plurality of accommodating spaces, the upper cover is covered on one side of the shell body to enable the accommodating spaces to form a plurality of accommodating cavities, an assembly gap is reserved between the shell partition wall and the upper cover, the elastic members are connected with one of the shell partition wall and the upper cover, the elastic piece of each elastic member is arranged in the assembly gap, and the elastic piece is pressed between the shell partition wall and the upper cover. The controller shell and the motor controller solve the problem that the electromagnetic isolation cannot be realized by the shielding design scheme of the traditional motor controller.

Inventors

  • WANG CHI
  • CHANG RUIFENG
  • LIU JIAN
  • LI JIANFENG
  • LI WENHAO
  • WANG YIMING

Assignees

  • 富奥汽车零部件股份有限公司
  • 富奥汽车零部件股份有限公司电动系统分公司
  • 富奥智研(上海)汽车科技有限公司

Dates

Publication Date
20260512
Application Date
20250521

Claims (10)

  1. 1. The controller shell is characterized by comprising a shell body, an upper cover and a plurality of elastic members, wherein the elastic members comprise elastic pieces; The shell comprises a shell body and a shell partition wall, one side of the shell body is opened, the shell partition wall is connected with the shell body to divide the interior of the shell body into a plurality of accommodating spaces, and the upper cover is covered on one side of the shell body to enable the accommodating spaces to form a plurality of accommodating cavities; There is the fit-up clearance between casing partition wall with the upper cover, a plurality of elastic component with the casing partition wall with one of them is connected of upper cover, every elastic component's elastic component set up in the fit-up clearance, the elastic component compresses tightly between the casing partition wall with the upper cover.
  2. 2. The controller housing according to claim 1, wherein the elastic member further comprises a fixing portion, and the elastic member is connected to the fixing portion; the fixed part is connected with a first one of the shell partition wall and the upper cover, the elastic sheet is tilted from the fixed part to one side where a second one of the shell partition wall and the upper cover is located, and the elastic sheet is in pressure connection with the second one of the shell partition wall and the upper cover.
  3. 3. The controller housing according to claim 2, wherein the fixing portion is clamped with the housing partition wall, the elastic sheet is tilted from the fixing portion to a side where the upper cover is located, and the elastic sheet is in pressure connection with the upper cover.
  4. 4. A controller housing according to claim 3, wherein the fixing portion comprises a support piece and two clip pieces; the supporting sheets are arranged on the surface of the shell partition wall, the two clamping sheets are respectively bent from the two ends of the supporting sheets to the two side surfaces of the shell partition wall, and the two clamping sheets can clamp the shell partition wall; the elastic sheet is tilted from the supporting sheet to one side where the upper cover is located.
  5. 5. The controller housing of claim 4, wherein a plurality of the resilient members are spaced apart in a first direction; the support sheet is provided with a through hole penetrating through the support sheet, the through hole extends along the first direction, and the through hole comprises a first hole wall and a second hole wall which are opposite to each other in the first direction; One end of the elastic sheet is connected with the first hole wall, and the other end of the elastic sheet extends to the second hole wall.
  6. 6. The controller enclosure of any one of claims 1-5, wherein the upper cover and the housing are each an integral casting.
  7. 7. The controller enclosure according to any one of claims 1-5, wherein the upper cover, the housing and the resilient member are all metal members.
  8. 8. The controller enclosure according to any one of claims 1-5, wherein the upper cover comprises a cover body and an upper cover partition; The upper cover partition wall is connected with the cover body, the upper cover partition wall extends from the cover body to one side where the shell partition wall is positioned, the upper cover partition wall and the shell partition wall are correspondingly arranged, the assembly gap is reserved between the shell partition wall and the upper cover partition wall, A plurality of the elastic members are connected with one of the housing partition wall and the upper cover partition wall, and the elastic members are compressed between the housing partition wall and the upper cover partition wall.
  9. 9. A motor controller, characterized in that it comprises a controller housing according to any one of claims 1-8; the motor controller also includes electronics disposed within a plurality of the receiving chambers.
  10. 10. The motor controller according to claim 9, wherein a distance between any adjacent two of the elastic members is equal; The motor controller satisfies d < lambda/4, lambda=v/f; wherein f is the shielding frequency required by the motor controller, V is the speed of light, lambda is the wavelength, and d is the distance between any two adjacent elastic members.

Description

Controller shell and motor controller Technical Field The application relates to the technical field of motor controllers, in particular to a controller shell and a motor controller. Background The integration level of the motor controller of the new energy automobile is higher and higher, the current inverter is changed into multiple-in-one inverter, more and more power electronic devices are arranged inside the inverter, and meanwhile, the motor controller is increased in density due to the product requirements of light weight and miniaturization. The problem of electromagnetic compatibility EMC is becoming serious, and for this reason, a shielding design must be adopted inside the motor controller. As shown in fig. 11 and 12, the conventional shielding design generally adopts a cavity shielding and isolating design, in which an integrated housing partition 210 is used inside a housing to form two spaces in the housing, and the same upper cover 100 is used to cover the housing to form two cavities in the two spaces. The shell is formed by casting, and the shell partition 210 is a casting rib plate, so that the wiring requirement is met, and the processing cost is reduced. However, the above-described processing method has a gap between the case partition wall 210 and the upper cover 100 due to processing tolerance and a later assembly, which has an influence on EMC performance. Specifically, as shown in fig. 11, a first assembly mode of the housing and the upper cover 100 is shown, wherein the first assembly mode is that the upper cover 100 and the housing are designed in a special dislocation manner, the housing partition wall 210 and the upper cover partition wall 110 are arranged in a dislocation manner, a dislocation gap is reserved between the housing partition wall 210 and the upper cover partition wall 110, and a routing gap is reserved between the upper surface of the housing partition wall 210 and the lower surface of the upper cover 100. Fig. 12 illustrates a second assembly method of the housing and the upper cover 100, wherein the second assembly method uses a special slot design for the upper cover 100 and the housing, a dislocation gap is reserved between the housing partition wall 210 and the two upper cover partition walls 110, and a routing gap is reserved between the upper surface of the housing partition wall 210 and the lower surface of the upper cover 100. In the shielding design of the motor controller, the two cavities cannot be required to be completely physically isolated, and the electrical isolation is also required to be achieved, namely EMC interference can be prevented. As can be seen from the simulations of fig. 13 and 14, none of the above prior shielding designs is electromagnetically isolated. Disclosure of utility model The application aims to provide a controller shell and a motor controller, thereby solving the problem that the electromagnetic isolation cannot be realized by the shielding design scheme of the existing motor controller. According to a first aspect of the present application, there is provided a controller housing including a case body having one side opened and a case partition wall connected with the case body to partition an interior of the case body into a plurality of accommodation spaces, an upper cover provided on one side of the case body such that the plurality of accommodation spaces form a plurality of accommodation chambers, and a plurality of elastic members connected with one of the case partition wall and the upper cover with an assembly gap therebetween, the elastic member of each elastic member being disposed at the assembly gap, the elastic member being pressed between the case partition wall and the upper cover. In any of the above technical solutions, the elastic member further includes a fixing portion, the elastic member is connected to the fixing portion, the elastic member is a spring, the fixing portion is connected to a first one of the housing partition wall and the upper cover, the spring is tilted from the fixing portion to a side where a second one of the housing partition wall and the upper cover is located, and the spring is in pressure connection with the second one of the housing partition wall and the upper cover. In any of the above technical solutions, further, the fixing portion is in clamping connection with the housing partition wall, the elastic sheet is tilted from the fixing portion to a side where the upper cover is located, and the elastic sheet is in compression joint with the upper cover. In any of the above technical solutions, the fixing portion further includes a supporting piece and two clamping pieces, the supporting piece is disposed on a surface of the housing partition wall, the two clamping pieces are respectively bent from two ends of the supporting piece to two side surfaces of the housing partition wall, the two clamping pieces can clamp the housing partition wall, and the elastic piece is bent f