CN222635712U

CN222635712U - Leak detection fixture for automobile PDU controller

Info

Publication number: CN222635712U
Application number: CN202421378938.2U
Authority: CN
Inventors: 王平; 曾本全; 钟名辉; 刘志华
Original assignee: Jiasi Automobile Technology Zhejiang Co ltd
Current assignee: Jiasi Automobile Technology Zhejiang Co ltd
Priority date: 2024-06-17
Filing date: 2024-06-17
Publication date: 2025-03-18
Anticipated expiration: 2034-06-17

Abstract

The utility model discloses a car PDU controller leak hunting frock clamp relates to anchor clamps technical field, and it is great to have solved anchor clamps and car PDU controller surface contact surface, when the contact surface of controller and anchor clamps had the crack flaw, because the cover of anchor clamps leads to the controller to be difficult to produce the bubble in water to influence the problem of the accuracy of controller leak hunting inspection, including installing in the punch holder of PDU controller upside and installing in the lower plate of PDU controller downside, and correspond PDU controller department on the lower plate and offered rectangular through-hole; the utility model discloses an installation a plurality of locating levers and a plurality of extrusion structure can effectively reduce the area of contact of anchor clamps and PDU controller to effectively avoid this anchor clamps frock to influence the accuracy of PDU controller inspection of leaking hunting, through installation reducing unit, be favorable to when demolishing the punch holder, avoid the punch holder to spring under the compression elasticity of spring and open and drop, make comparatively mild stability when dismantling the punch holder.

Description

Leak detection fixture for automobile PDU controller

Technical Field

The utility model relates to the technical field of clamps, in particular to a leak detection fixture for an automobile PDU controller.

Background

The automobile PDU controller is responsible for power distribution and management in the high-voltage system of the new energy automobile, and provides functions such as charge and discharge control, high-voltage component power-on control, circuit overload short-circuit protection, high-voltage sampling, low-voltage control and the like for the whole automobile, and protects and monitors the operation of the high-voltage system. After the automobile PDU controller is processed, the automobile PDU controller needs to be subjected to leak detection.

In the prior art, in the process of detecting leakage, the automobile PDU controller is positioned by a fixture, then the fixture is immersed in water, and then the automobile PDU controller is inflated to observe whether bubbles are generated in the water, so as to detect the tightness of the automobile PDU controller. However, when the conventional tool clamp clamps the automobile PDU controller, the contact surface between the conventional tool clamp and the surface of the automobile PDU controller is large, and when crack flaws exist on the contact surface between the controller and the clamp, bubbles are difficult to generate in water due to the coverage of the clamp, so that the accuracy of the leak detection test of the controller is affected.

Disclosure of utility model

The utility model aims to provide an automobile PDU controller leak detection fixture capable of preventing the accuracy of the controller leak detection from being affected, and the problem in the background technology can be solved.

The technical scheme includes that the leak detection fixture comprises an upper clamping plate arranged on the upper side of a PDU controller and a lower clamping plate arranged on the lower side of the PDU controller, rectangular through holes are formed in the lower clamping plate corresponding to the PDU controller, pin rods are fixedly arranged at four corners of the lower end of the upper clamping plate, sleeve bases are fixedly arranged at four corners of the upper end of the lower clamping plate, the pin rods are connected with the sleeve bases in a plug-in connection mode, a plurality of positioning rods are fixedly embedded in the outer side of the PDU controller at the upper end of the lower clamping plate, a connecting structure is used for connecting and locking the upper clamping plate and the lower clamping plate, four connecting structures are arranged between the upper clamping plate and the lower clamping plate and are arranged on the outer side of the PDU controller, the extrusion structure is used for clamping the PDU controller in a matching mode, a plurality of extrusion structures are arranged at the upper end of the PDU controller, and a speed reducing assembly is used for reducing the reset movement of the extrusion structure and is arranged in the extrusion structure.

Preferably, the downside of the upper clamping plate is located the upside fixed mounting of PDU controller and has the fixed plate, the extrusion structure include with fixed plate fixed connection's embedded rod, the cross-sectional shape of embedded rod is circular.

Preferably, the lower extreme of embedded pole is fixed to be cup jointed the anticreep piece, the outside activity of anticreep piece has cup jointed the outer tube, the lower extreme of outer tube is fixed to be inlayed and is equipped with the depression bar, the lower terminal surface and the PDU controller contact of depression bar.

Preferably, the outside activity of embedded rod has cup jointed the spring, just the both ends of spring respectively with fixed plate with the outer tube activity butt, the spring can drive the outer tube and move down.

Preferably, the connecting structure comprises a long connecting rod fixedly connected with the upper clamping plate, and the lower end of the long connecting rod is fixedly connected with a threaded joint.

Preferably, the lower end of the threaded joint is movably abutted with a short connecting rod, the short connecting rod is fixedly connected with the lower clamping plate, a threaded sleeve is movably sleeved on the outer side of the short connecting rod, and the threaded sleeve can move up and down on the outer side of the short connecting rod.

Preferably, the threaded sleeve is in threaded connection with the threaded connector, and a baffle ring is fixedly sleeved at the position, close to the upper end, of the outer side of the short connecting rod, so that the baffle ring can prevent the threaded sleeve from being separated from the short connecting rod.

Preferably, the speed reducing assembly comprises a silica gel cam movably embedded in the outer side of the anti-falling block, the silica gel cam is in movable contact with the inner wall of the outer sleeve, and the friction force between the silica gel cam and the inner wall of the outer sleeve is large.

Preferably, the inside of silica gel cam is fixed to be inlayed and is had the pivot, the anticreep piece is installed spacing groove of changeing has been seted up to silica gel cam department, just the silica gel cam passes through pivot and spacing groove of changeing with the anticreep piece rotates to be connected, and the anticreep piece can avoid the embedded pole to break away from the outer tube.

Preferably, the outside of pivot is fixed to be cup jointed the wind spring, and the wind spring can drive silica gel cam rotation, just the outside end of wind spring with anticreep piece fixed connection.

Compared with the prior art, the utility model has the beneficial effects that:

1. According to the utility model, the plurality of positioning rods and the plurality of extrusion structures are arranged, and the pressing rods in the plurality of extrusion structures press the PDU controller, so that the fixture is beneficial to clamping the PDU controller, and meanwhile, the contact area between the fixture and the PDU controller can be effectively reduced, thereby effectively avoiding the fixture from influencing the accuracy of the leak detection test of the PDU controller.

2. According to the utility model, the speed reduction assembly is arranged, and the silica gel cam in the speed reduction assembly is attached to the inner wall of the outer sleeve, so that the upper clamping plate is prevented from being sprung out and falling under the compression elasticity of the spring when the upper clamping plate is dismounted, and the upper clamping plate is more gentle and stable when the upper clamping plate is dismounted.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic diagram illustrating the disassembly of the present utility model;

FIG. 3 is a schematic view showing the connection of the pressing structure and the fixing plate according to the present utility model;

FIG. 4 is a schematic view of the extrusion structure of the present utility model;

FIG. 5 is a schematic side cross-sectional view of an extrusion structure of the present utility model;

Fig. 6 is an enlarged schematic view of fig. 5a in accordance with the present utility model.

The device comprises a clamping plate 1, an upper clamping plate 2, a lower clamping plate 3, a pin rod 4, a sleeve seat 5, a connecting structure 501, a long connecting rod 502, a threaded joint 503, a short connecting rod 504, a threaded sleeve 505, a baffle ring 6, a fixing plate 7, an extrusion structure 701, an embedded rod 702, an anti-falling block 703, an outer sleeve 704, a compression rod 705, a spring 8, a speed reducing assembly 801, a silica gel cam 802, a rotating shaft 803, a coil spring 804, a limiting rotating groove 9 and a positioning rod.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

Referring to fig. 1, 2 and 3, in the drawings, a leak detection fixture for an automotive PDU controller comprises an upper clamping plate 1 arranged on the upper side of the PDU controller and a lower clamping plate 2 arranged on the lower side of the PDU controller, wherein rectangular through holes are formed in the lower clamping plate 2 corresponding to the PDU controller, pin rods 3 are fixedly arranged at four corners of the lower end of the upper clamping plate 1, sleeve bases 4 are fixedly arranged at four corners of the upper end of the lower clamping plate 2, the pin rods 3 and the sleeve bases 4 are connected in a plug-in connection manner, a plurality of positioning rods 9 are fixedly embedded in the upper end of the lower clamping plate 2 on the outer side of the PDU controller, a connecting structure 5 is used for connecting and locking the upper clamping plate 1 and the lower clamping plate 2, four connecting structures 5 are arranged between the upper clamping plate 1 and the lower clamping plate 2 and are arranged on the outer side of the PDU controller, a pressing structure 7 is used for clamping the PDU controller in cooperation with the lower clamping plate 2, a plurality of pressing structures 7 are arranged at the upper end of the PDU controller, a speed reducing assembly 8 is used for reducing the reset movement of the pressing structure 7, and the speed reducing assembly 8 is arranged inside the pressing structure 7.

Referring to fig. 3 and 5, a fixing plate 6 is fixedly mounted on the lower side of the upper clamping plate 1 at the upper side of the PDU controller, the extrusion structure 7 comprises an embedded rod 701 fixedly connected with the fixing plate 6, the cross section of the embedded rod 701 is circular, an anti-drop block 702 is fixedly sleeved at the lower end of the embedded rod 701, an outer sleeve 703 is movably sleeved at the outer side of the anti-drop block 702, a compression rod 704 is fixedly sleeved at the lower end of the outer sleeve 703, and the lower end face of the compression rod 704 is in contact with the PDU controller.

Referring to fig. 4, a spring 705 is movably sleeved on the outer side of the embedded rod 701, two ends of the spring 705 are respectively movably abutted to the fixed plate 6 and the outer sleeve 703, and the spring 705 can drive the outer sleeve 703 to move downwards.

The working principle of the controller leakage detection test is prevented from being influenced by the fact that after the PDU controller is embedded on the lower clamp plate 2, the PDU controller is positioned by the positioning rod 9 on the lower clamp plate 2, then the upper clamp plate 1 is assembled with the lower clamp plate 2, after the upper clamp plate 1 and the lower clamp plate 2 are assembled, the plurality of compression rods 704 are tightly attached to the upper end face of the PDU controller under the driving of compression elasticity of the springs 705, the PDU controller is clamped, the PDU controller is subjected to spot pressing by the plurality of compression rods 704, the contact area of a clamp and the PDU controller can be effectively reduced, and therefore the fact that the clamp tool influences the accuracy of the PDU controller leakage detection test is effectively avoided.

Example two

Referring to fig. 5 and 6, in this embodiment, for further description of the embodiment, the deceleration assembly 8 includes a silica gel cam 801 movably embedded on the outer side of the anti-drop block 702, and the connection manner between the silica gel cam 801 and the inner wall of the outer sleeve 703 is movable contact, so that the friction force between the silica gel cam 801 and the inner wall of the outer sleeve 703 is large.

Referring to fig. 6, a rotating shaft 802 is fixedly embedded in the silica gel cam 801, a limiting rotating groove 804 is formed in the position where the silica gel cam 801 is installed on the anti-falling block 702, the silica gel cam 801 is rotationally connected with the anti-falling block 702 through the rotating shaft 802 and the limiting rotating groove 804, the anti-falling block 702 can prevent the embedded rod 701 from separating from the outer sleeve 703, a coil spring 803 is fixedly sleeved on the outer side of the rotating shaft 802, the coil spring 803 can drive the silica gel cam 801 to rotate, and the outer side end of the coil spring 803 is fixedly connected with the anti-falling block 702.

In this embodiment, when the compression bar 704 is pressed on the PDU controller, the embedded rod 701 and the anti-drop block 702 move downwards in the outer sleeve 703, the silica gel cam 801 rotates under the drive of the inner wall of the outer sleeve 703, when the upper plate 1 is removed, the anti-drop block 702 moves upwards in the outer sleeve 703 under the drive of the compression elastic force of the spring 705, and in the process of moving upwards the anti-drop block 702, the silica gel cam 801 is blocked by the limited position rotating groove 804 and cannot rotate, so that the silica gel cam 801 directly contacts with the inner wall of the outer sleeve 703, thereby effectively reducing the upward movement speed of the anti-drop block 702 in the outer sleeve 703, avoiding the upper plate 1 from bouncing out under the drive of the compression elastic force of the plurality of springs 705 when the upper plate 1 is removed, and ensuring that the upper plate 1 is more gentle and stable when the upper plate 1 is removed.

Example III

Referring to fig. 2, for further explanation of this embodiment, the connecting structure 5 includes a long connecting rod 501 fixedly connected with the upper clamping plate 1, a threaded joint 502 fixedly connected with the lower end of the long connecting rod 501, a short connecting rod 503 movably abutted with the lower end of the threaded joint 502, a threaded sleeve 504 movably sleeved on the outer side of the short connecting rod 503, the threaded sleeve 504 can move up and down on the outer side of the short connecting rod 503, a stop ring 505 fixedly sleeved on the outer side of the short connecting rod 503 near the upper end of the short connecting rod 502, and the stop ring 505 can avoid the threaded sleeve 504 from separating from the short connecting rod 503.

In the embodiment, when the upper clamping plate 1 and the lower clamping plate 2 are assembled, a person inserts the pin rods 3 at four corners of the upper clamping plate 1 into the sleeve seats 4 at four corners of the lower clamping plate 2, and after the long connecting rod 501 and the short connecting rod 503 are abutted, the person rotationally sleeves the threaded sleeve 504 on the threaded joint 502, so that the long connecting rod 501 and the short connecting rod 503 are connected, and the upper clamping plate 1 and the lower clamping plate 2 are connected and assembled.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process-method-article or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process-method-article or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes-modifications-substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a leak hunting frock clamp of automobile PDU controller, its characterized in that includes install in the upper plate (1) of PDU controller upside and install in the lower plate (2) of PDU controller downside, and rectangular through-hole has been seted up to corresponding PDU controller department on lower plate (2), the lower extreme four corners department of upper plate (1) is fixed mounting has round pin pole (3), the upper end four corners department of lower plate (2) is fixed mounting has cover seat (4), just the pin pole (3) with the connected mode between cover seat (4) is plug connection, the upper end of lower plate (2) is located the outside of PDU controller and fixedly inlay and be equipped with a plurality of locating levers (9);

The connecting structures (5) are used for connecting and locking the upper clamping plate (1) and the lower clamping plate (2), and four connecting structures (5) are arranged between the upper clamping plate (1) and the lower clamping plate (2) and are positioned at the outer side of the PDU controller;

The extrusion structures (7) are used for clamping the PDU controller in cooperation with the lower clamping plate (2), and a plurality of extrusion structures (7) are arranged at the upper end of the PDU controller;

and the speed reducing assembly (8) is used for reducing the reset motion of the extrusion structure (7), and the speed reducing assembly (8) is arranged inside the extrusion structure (7).

2. The leakage detection fixture for the automotive PDU controller according to claim 1, wherein a fixing plate (6) is fixedly arranged on the lower side of the upper clamping plate (1) and located on the upper side of the PDU controller, and the extrusion structure (7) comprises an embedded rod (701) fixedly connected with the fixing plate (6).

3. The leakage detection fixture for the automobile PDU controller according to claim 2, wherein the lower end of the embedded rod (701) is fixedly sleeved with an anti-falling block (702), the outer side of the anti-falling block (702) is movably sleeved with an outer sleeve (703), and the lower end of the outer sleeve (703) is fixedly sleeved with a compression rod (704).

4. The leakage detection fixture for the automobile PDU controller according to claim 3, wherein a spring (705) is movably sleeved on the outer side of the embedded rod (701), and two ends of the spring (705) are movably abutted with the fixed plate (6) and the outer sleeve (703) respectively.

5. The leakage detection fixture for the automobile PDU controller according to claim 1, wherein the connecting structure (5) comprises a long connecting rod (501) fixedly connected with the upper clamping plate (1), and a threaded joint (502) is fixedly connected to the lower end of the long connecting rod (501).

6. The device for detecting leakage of the automobile PDU controller according to claim 5, wherein the lower end of the threaded joint (502) is movably abutted with a short connecting rod (503), the short connecting rod (503) is fixedly connected with the lower clamping plate (2), and a threaded sleeve (504) is movably sleeved on the outer side of the short connecting rod (503).

7. The leakage detection fixture for the automobile PDU controller according to claim 6, wherein the threaded sleeve (504) is connected with the threaded joint (502) in a threaded manner, and a baffle ring (505) is fixedly sleeved on the outer side of the short connecting rod (503) close to the upper end of the short connecting rod.

8. The leakage detection fixture for the automobile PDU controller according to claim 3, wherein the speed reducing assembly (8) comprises a silica gel cam (801) movably embedded on the outer side of the anti-drop block (702), and the connection mode between the silica gel cam (801) and the inner wall of the outer sleeve (703) is movable contact.

9. The device for detecting leakage of the automobile PDU controller according to claim 8, wherein a rotating shaft (802) is fixedly embedded in the silica gel cam (801), a limiting rotating groove (804) is formed in the position where the anti-falling block (702) is installed on the silica gel cam (801), and the silica gel cam (801) is rotationally connected with the anti-falling block (702) through the rotating shaft (802) and the limiting rotating groove (804).

10. The leakage detection fixture for the automobile PDU controller according to claim 9, wherein a coil spring (803) is fixedly sleeved on the outer side of the rotating shaft (802), and the outer side end of the coil spring (803) is fixedly connected with the anti-falling block (702).