CN114518291B - New energy automobile motor lead wire and capability test system thereof - Google Patents
New energy automobile motor lead wire and capability test system thereof Download PDFInfo
- Publication number
- CN114518291B CN114518291B CN202210153266.4A CN202210153266A CN114518291B CN 114518291 B CN114518291 B CN 114518291B CN 202210153266 A CN202210153266 A CN 202210153266A CN 114518291 B CN114518291 B CN 114518291B
- Authority
- CN
- China
- Prior art keywords
- test
- lead wire
- motor lead
- seat
- testing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to the technical field of cables, in particular to a novel energy automobile motor lead wire and a performance test system thereof. According to the invention, the pressure sensing layer is arranged in the motor lead wire and is matched with the performance testing system, so that the compression resistance test with the testing standard is realized on the motor lead wire; according to the invention, the plurality of test pressure heads with different shapes are designed to simulate the compression resistance test of different extrusion types on the motor lead wire, and the data of the limit pressure born by the motor lead wire when aiming at the extrusion of different types is obtained, so that the problem that the existing compression resistance test can only simulate a single test type to test the motor lead wire and cannot meet the test requirement is solved.
Description
Technical Field
The invention relates to the technical field of cables, in particular to a novel energy automobile motor lead wire and a performance test system thereof.
Background
The motor lead wire is a lead wire for connecting the motor with an external power supply. Considering the use environment of the motor lead wire and the installation position thereof, the motor lead wire is subjected to compression resistance test, so that the limit extrusion acting force of the motor lead wire can be born is measured, the production process of the motor lead wire is improved according to the measured data and fed back into the motor lead wire manufacturing process, and the compression resistance of the motor lead wire is further improved, therefore, the compression resistance test of the motor lead wire is very necessary before leaving the factory.
The existing motor lead wire compression resistance test has the following problems: firstly, the existing compression resistance test can only simulate a single test type to test the motor lead wire, and cannot meet the test requirement; secondly, the existing compression resistance test has no specific test standard, and after the motor lead wire is extruded to some extent, the test is ended or qualified, so that the phenomenon of breakage or disqualification of the motor lead wire is extremely easy to occur.
Disclosure of Invention
In order to solve the technical problems, the invention provides a new energy automobile motor lead wire and a performance test system thereof.
The technical problems to be solved by the invention are realized by adopting the following technical scheme:
the utility model provides a new energy automobile motor lead wire, includes the sinle silk, cladding in proper order at outside shielding layer, fire-retardant layer, insulating layer, inner liner, outer liner, the wear-resisting armor of sinle silk, still be equipped with the forced induction layer between insulating layer and the inner liner.
Further, the pressure sensing layer is made of a flexible pressure sensing material.
Further, the inner lining and the outer lining are made of silicon rubber materials.
The utility model provides a performance test system that new energy automobile motor lead wire was used, includes the testboard, be equipped with the test seat on the testboard, the test seat is L shaped plate column structure, still includes:
the test frame is arranged on the test seat and is used for installing a motor lead wire to be tested;
the performance testing mechanism is horizontally and slidably arranged on the testing seat and corresponds to the horizontal height of the testing frame and is used for carrying out compression resistance testing on the motor lead wires arranged on the testing frame in a mode of simulating different extrusion types.
Preferably, the test rack comprises two side brackets arranged on the test seat, a mounting guide plate positioned between the two side brackets and a connecting frame plate, wherein two mounting clamping plate assemblies are correspondingly arranged on the two side brackets, and the mounting guide plate is of an L-shaped plate structure.
Preferably, the performance testing mechanism comprises a sliding guide rod, a moving seat and a rotating installation seat, wherein the sliding guide rod is arranged on the testing seat and horizontally distributed along the installation direction of the lead wire, the moving seat is slidably installed on the sliding guide rod, the rotating installation seat is installed on the moving seat in a unidirectional rotation mode, the sliding guide rod is of a square rod-shaped structure, and four groups of testing components of different extrusion types are arranged on the rotating installation seat.
Preferably, the movable seat is in an internal and external circular structure, an elastic unidirectional external gear ring is arranged on the outer surface of the movable seat, and an elastic unidirectional annular gear matched with the elastic unidirectional external gear ring is circumferentially arranged on the inner surface of the rotary mounting seat.
Preferably, the four groups of test assemblies comprise a test flat plate arranged on the rotary mounting seat, a pushing threaded rod arranged on the test flat plate, a test pressure head arranged on the pushing threaded rod and a test pressure gauge connected with the test pressure head.
Preferably, the test pressure heads in the four groups of test assemblies are provided with test limit baffles matched with the mounting guide plates.
Preferably, the head types of the test rams in the four sets of test assemblies are respectively toothed, triangular, semi-cylindrical, square.
The beneficial effects of the invention are as follows:
1. according to the invention, the pressure sensing layer is arranged in the motor lead wire and is matched with the performance testing system, so that the compression resistance test with the testing standard is realized on the motor lead wire;
2. according to the invention, the compression resistance test of different extrusion types is simulated on the motor lead wire by designing a plurality of test pressure heads with different shapes, and the data of the limit pressure born by the motor lead wire in terms of different types of extrusion is obtained, so that the data are fed back to the production and manufacturing process of the motor lead wire, the compression resistance of the motor lead wire is improved from the manufacturing source, and the problem that the existing compression resistance test can only simulate a single test type to test the motor lead wire and cannot meet the test requirement is solved.
Drawings
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
FIG. 1 is a schematic view of a lead wire according to the present invention;
FIG. 2 is a schematic diagram of a test system according to the present invention;
FIG. 3 is a schematic view of a test rack in the test system of the present invention;
FIG. 4 is a schematic diagram of a feature testing mechanism in the testing system of the present invention;
FIG. 5 is a schematic view of a movable seat and an elastic single-direction external gear ring in the test system of the present invention;
fig. 6 is a schematic structural diagram of an elastic unidirectional ring gear in the test system of the present invention.
In the figure: 1. a wire core; 2. a shielding layer; 3. a flame retardant layer; 4. an insulating layer; 5. a pressure sensitive layer; 6. an inner liner; 7. an outer liner; 8. a wear resistant armor layer; 9. a test bench; 10. a test seat; 11. a test rack; 111. a side bracket; 112. installing a guide plate; 113. a connecting frame plate; 114. installing a clamping plate assembly; 12. a sliding guide rod; 13. a movable seat; 131. an elastic single-direction external gear ring; 14. rotating the mounting seat; 141. an elastic one-way ring gear; 15. testing a flat plate; 16. pushing the threaded rod; 17. testing a pressure head; 18. testing a pressure gauge; 19. and testing the limit baffle.
Detailed Description
In order that the manner in which the invention is attained, as well as the features and advantages thereof, will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings.
As shown in fig. 1, the novel energy automobile motor lead wire is composed of a wire core 1, a shielding layer 2, a flame retardant layer 3, an insulating layer 4, an inner bushing 6, an outer bushing 7 and a wear-resistant armor layer 8, wherein the shielding layer 2, the flame retardant layer 3, the insulating layer 4, the inner bushing 6, the outer bushing 7 and the wear-resistant armor layer 8 are sequentially coated outside the wire core 1. The wire core 1 is a tin-plated copper conductor. The shielding layer 2 has better shielding anti-interference performance, and the flame-retardant layer 3 is a halogen-free low-smoke flame-retardant material and has stronger flame-retardant performance. The inner lining 6 and the outer lining 7 are made of silicon rubber materials, and have strong extrusion resistance. Still be equipped with forced induction layer 5 between insulating layer 4 and the inner liner 6, forced induction layer 5 is made by flexible forced induction material, is receiving under the condition of extrusion through this forced induction layer 5, whether senses extrusion effort and is standard, carries out compressive property test. Specifically, if the pressure sensing layer 5 senses the extrusion acting force, it indicates that the motor lead wire reaches a damaged state and cannot be used continuously, and in this state, the test is ended; if the pressure sensing layer 5 does not sense the extrusion acting force, the motor lead wire is indicated to not reach the damaged state yet, and the motor lead wire can be used continuously, and the test is continued.
As shown in fig. 2, a performance test system for a new energy automobile motor lead wire mainly comprises a test bench 9, a test seat 10, a test rack 11 and a performance test mechanism. The test bench 9 is formed by welding sectional materials, the test seat 10 is of an L-shaped plate structure, the test frame 11 is arranged on the bottom plate of the test seat 10, and the performance test mechanism is arranged on the lateral vertical plate at the rear side of the test seat 10.
As shown in fig. 3, the test rack 11 is mainly composed of two side brackets 111, a mounting guide 112, a connection rack plate 113, and two mounting clamping plate assemblies 114. The two side brackets 111 are symmetrically arranged on the left and right sides of the bottom plate of the test seat 10, and the two mounting clamping plate assemblies 114 are correspondingly arranged at the upper ends of the two side brackets 111. The installation guide plate 112 is arranged between the upper ends of the two side brackets 111, the installation guide plate 112 is of an L-shaped plate structure, and corresponds to the height of a performance testing mechanism arranged on the lateral vertical plate of the test seat 10, during testing, motor lead wires are placed on the installation guide plate 112, and two ends of the motor lead wires are clamped by the installation clamping plate assemblies 114 on the two side brackets 111.
As shown in fig. 4, the performance testing mechanism mainly comprises a sliding guide rod 12, a movable seat 13, a rotary mounting seat 14 and four groups of testing components. The sliding guide rod 12 is horizontally arranged on a rear side lateral vertical plate of the test seat 10 along the left-right direction, the sliding guide rod 12 is of a square rod-shaped structure, the movable seat 13 is of an inner-outer circular structure, the movable seat 13 is arranged on the sliding guide rod 12 in a sliding manner, and when the test seat is used, the movable seat 13 is pushed by external force to slide on the sliding guide rod 12 to adjust the position of the movable seat 13. By designing the sliding guide rod 12 into a square structure, the pushing movement seat 13 is limited in circumferential rotation, so that the pushing movement seat 13 cannot synchronously rotate along with the rotation mounting seat 14. The four sets of test assemblies are correspondingly arranged on the front side, the rear side, the upper side and the lower side of the rotary mounting seat 14, and the test assemblies on each side simulate extrusion modes of different extrusion types to test the compression resistance of the motor lead wires.
As shown in fig. 5 and 6, the rotary mount 14 is rotatably mounted on the movable mount 13. As a further embodiment of the present invention, the outer surface of the movable seat 13 is provided with an elastic unidirectional outer gear ring 131, the inner surface of the rotary mounting seat 14 is provided with an elastic unidirectional inner gear ring 141 which is engaged with the elastic unidirectional outer gear ring 131 in an adapting manner, and the rotary mounting seat 14 can only perform unidirectional rotation in the front side direction through the cooperation of the elastic unidirectional outer gear ring 131 and the elastic unidirectional inner gear ring 141. Thereby realizing the switching test among the four groups of test components.
As shown in fig. 4, the four sets of test components are each composed of a test flat plate 15 serving as a support, a push-press threaded rod 16 serving as a push-press drive, a test ram 17 for pressing, and a test pressure gauge 18 connected to the test ram 17 for measuring the pressing force. The test flat plate 15 is fixedly installed on the outer surface of the rotary installation seat 14, the pushing threaded rod 16 is arranged on the test flat plate 15 along the front-rear direction, the pushing threaded rod 16 is provided with a rotary handle, the test press head 17 can be horizontally moved forwards by rotating the pushing threaded rod 16, and the test press head corresponds to a motor lead wire at the front side of the test press head to perform performance test. Further, the test press heads 17 in the four groups of test assemblies are all provided with a test limit baffle 19 positioned above the test press heads 17, the bottom surface horizontal height of the test limit baffle 19 is matched with the vertical plate top horizontal height of the installation guide plate 112, and in the horizontal movement process of the test press heads 17, the test press heads are matched with the installation guide plate 112 to gradually form limit on the upper, lower and front three directions of the motor lead.
As a further embodiment of the present invention, the head types of the four test indenters 17 in the four sets of test assemblies are respectively tooth-shaped, triangular, semi-cylindrical and square, specifically, the tooth-shaped test indenter 17 is located above, the triangular test indenter 17 is located at the rear, the semi-cylindrical test indenter 17 is located below, and the square test indenter 17 is located at the front. During testing, testing is performed in the sequence of tooth shape, triangle, semi-cylinder and square.
The compression resistance test of simulating different extrusion types is carried out on the motor lead wire through designing the test pressure heads 17 with different shapes, and the data of the limit pressure born by the motor lead wire when aiming at the extrusion of different types is obtained, so that the compression resistance of the motor lead wire is improved from the manufacturing source in the process of feeding back the data to the motor lead wire production and manufacturing.
The use process of the test system comprises the following steps:
firstly, placing a motor lead wire on a mounting guide plate 112, clamping two ends of the motor lead wire by mounting clamping plate assemblies 114 on two side brackets 111, then, manually moving a movable seat 13 to the left end or the right end of a sliding guide rod 12 by an operator, then, rotating a pushing threaded rod 16 in a testing assembly at the current upper position by the operator to horizontally move a tooth-shaped testing pressure head 17 to the front side, gradually extruding the motor lead wire by the tooth-shaped head on the testing pressure head 17 until the tooth-shaped head touches a pressure sensing layer 5, measuring the extrusion pressure of the current testing pressure head 17 on the motor lead wire by a testing pressure gauge 18, and recording current data by the operator;
then resetting the current testing pressure head 17, manually moving the movable seat 13 on the sliding guide rod 12 for a certain distance, manually rotating the rotary mounting seat 14 to enable the rear testing component to rotate to the upper side, repeating the testing process, and recording the extrusion pressure data of the current triangular testing pressure head 17 on the motor lead wire;
then, the above process is repeated twice, and extrusion pressure data of the semi-cylindrical test press head 17 and the square test press head 17 to the motor lead wire are recorded correspondingly.
By simulating four compression resistance tests of different extrusion types at four different positions on the same motor lead wire, the compression resistance test of multiple different extrusion types is realized, and the accuracy and precision of test results are ensured.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (1)
1. The utility model provides a performance test system that new energy automobile motor lead wire was used, includes a new energy automobile motor lead wire, and this motor lead wire includes sinle silk (1), cladding in proper order in outside shielding layer (2) of sinle silk (1), fire-retardant layer (3), insulating layer (4), forced induction layer (5), inner liner (6), outer liner (7), wear-resisting armor (8), forced induction layer (5) are made by flexible forced induction material, inner liner (6), outer liner (7) are the silicone rubber material, still include testboard (9), be equipped with test seat (10) on testboard (9), test seat (10) are L shaped plate column structure, still include:
the test frame (11) is arranged on the test seat (10) and is used for installing a motor lead wire to be tested;
the performance testing mechanism is horizontally and slidably arranged on the testing seat (10) and corresponds to the horizontal height of the testing frame (11), and is used for testing the compression resistance of the motor lead wires arranged on the testing frame (11) in a mode of simulating different extrusion types;
the test rack (11) comprises two side brackets (111) arranged on the test seat (10), a mounting guide plate (112) arranged between the two side brackets (111) and a connecting frame plate (113), two mounting clamping plate assemblies (114) are correspondingly arranged on the two side brackets (111), and the mounting guide plate (112) is of an L-shaped plate structure; the method is characterized in that:
the performance testing mechanism comprises a sliding guide rod (12) which is arranged on a testing seat (10) and horizontally distributed along the same direction as the installation direction of a lead wire, a movable seat (13) which is slidably arranged on the sliding guide rod (12), and a rotary mounting seat (14) which is arranged on the movable seat (13) in a unidirectional rotation mode, wherein the sliding guide rod (12) is of a square rod-shaped structure, and four groups of testing components with different extrusion types are arranged on the rotary mounting seat (14);
the movable seat (13) is of an inner square and outer circular structure, an elastic unidirectional outer gear ring (131) is arranged on the outer surface of the movable seat (13), and an elastic unidirectional inner gear ring (141) matched with the elastic unidirectional outer gear ring (131) is circumferentially arranged on the inner surface of the rotary mounting seat (14);
the four groups of test assemblies comprise a test flat plate (15) arranged on the rotary mounting seat (14), a pushing threaded rod (16) arranged on the test flat plate (15), a test pressure head (17) arranged on the pushing threaded rod (16) and a test pressure gauge (18) connected with the test pressure head (17);
test limiting baffles (19) matched with the installation guide plates (112) are arranged on the test pressure heads (17) in the four groups of test assemblies;
the head types of the test pressure heads (17) in the four groups of test assemblies are respectively tooth-shaped, triangular, semi-cylindrical and square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210153266.4A CN114518291B (en) | 2022-02-18 | 2022-02-18 | New energy automobile motor lead wire and capability test system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210153266.4A CN114518291B (en) | 2022-02-18 | 2022-02-18 | New energy automobile motor lead wire and capability test system thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114518291A CN114518291A (en) | 2022-05-20 |
| CN114518291B true CN114518291B (en) | 2023-10-20 |
Family
ID=81599462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210153266.4A Active CN114518291B (en) | 2022-02-18 | 2022-02-18 | New energy automobile motor lead wire and capability test system thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114518291B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6247356B1 (en) * | 1999-03-30 | 2001-06-19 | Instron Corporation | Hardness tester |
| CN204241324U (en) * | 2014-10-28 | 2015-04-01 | 威凯检测技术有限公司 | A kind of electric wire Apparatus for Pressure at high-temp device |
| CN204882259U (en) * | 2015-05-28 | 2015-12-16 | 天津市安正电力高分子材料有限公司 | Low smoke and zero halogen cable material compression test machine |
| CN205487496U (en) * | 2016-01-25 | 2016-08-17 | 远东电缆有限公司 | Fire -retardant flexible cable of wisdom energy wind power tower cylinder interior illumination environmental protection |
| CN106782811A (en) * | 2016-12-03 | 2017-05-31 | 安徽中润电缆集团股份有限公司 | A kind of multicore resistance to compression high-temperature cable |
| CN110132750A (en) * | 2019-06-26 | 2019-08-16 | 华东理工大学 | A kind of impression test device and test method |
| CN211604740U (en) * | 2020-04-17 | 2020-09-29 | 扬州神龙绳业有限公司 | High-strength ocean deep sea pressure monitoring cable |
| CN111863336A (en) * | 2020-08-04 | 2020-10-30 | 江苏江扬特种电缆有限公司 | Cable for shore power system |
| CN212904266U (en) * | 2020-05-22 | 2021-04-06 | 浙江数智交院科技股份有限公司 | Hydraulic testing device capable of rotatably switching pressure heads |
| CN113866012A (en) * | 2021-09-24 | 2021-12-31 | 沪东重机有限公司 | Special pressure head frock of sheet metal class product bending test |
-
2022
- 2022-02-18 CN CN202210153266.4A patent/CN114518291B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6247356B1 (en) * | 1999-03-30 | 2001-06-19 | Instron Corporation | Hardness tester |
| CN204241324U (en) * | 2014-10-28 | 2015-04-01 | 威凯检测技术有限公司 | A kind of electric wire Apparatus for Pressure at high-temp device |
| CN204882259U (en) * | 2015-05-28 | 2015-12-16 | 天津市安正电力高分子材料有限公司 | Low smoke and zero halogen cable material compression test machine |
| CN205487496U (en) * | 2016-01-25 | 2016-08-17 | 远东电缆有限公司 | Fire -retardant flexible cable of wisdom energy wind power tower cylinder interior illumination environmental protection |
| CN106782811A (en) * | 2016-12-03 | 2017-05-31 | 安徽中润电缆集团股份有限公司 | A kind of multicore resistance to compression high-temperature cable |
| CN110132750A (en) * | 2019-06-26 | 2019-08-16 | 华东理工大学 | A kind of impression test device and test method |
| CN211604740U (en) * | 2020-04-17 | 2020-09-29 | 扬州神龙绳业有限公司 | High-strength ocean deep sea pressure monitoring cable |
| CN212904266U (en) * | 2020-05-22 | 2021-04-06 | 浙江数智交院科技股份有限公司 | Hydraulic testing device capable of rotatably switching pressure heads |
| CN111863336A (en) * | 2020-08-04 | 2020-10-30 | 江苏江扬特种电缆有限公司 | Cable for shore power system |
| CN113866012A (en) * | 2021-09-24 | 2021-12-31 | 沪东重机有限公司 | Special pressure head frock of sheet metal class product bending test |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114518291A (en) | 2022-05-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105258932B (en) | High-voltage switch contact mechanical endurance test device | |
| CN114518291B (en) | New energy automobile motor lead wire and capability test system thereof | |
| CN106769574A (en) | Hardware residual stress and case hardness relation test device and method | |
| CN114441340A (en) | Mute abrasion-resistant track of wire and cable repeated bending tester | |
| CN209911508U (en) | Key testing device | |
| CN114898921B (en) | Anti-interference bending-resistant robot cable and bending-resistant testing device thereof | |
| CN210038089U (en) | Needle bed mechanism | |
| CN218272675U (en) | Withstand voltage detection device of ammeter | |
| CN108414927B (en) | Detection method based on automatic switch detection equipment | |
| CN216209540U (en) | Quality detection device is used in wire pole production | |
| CN111398056B (en) | Testing method for superfine coaxial cable | |
| CN113588401A (en) | Performance detection device for cable production and processing | |
| CN213544661U (en) | Testing arrangement of DALI controlgear dynamic response | |
| CN217223400U (en) | Fixed-length cutting equipment for electric wire production | |
| JP4951357B2 (en) | Manufacturing method and manufacturing apparatus for terminal fitting with electric wire | |
| CN216718042U (en) | Multi-core cable test fixture | |
| CN220751873U (en) | Metal product life action test equipment | |
| CN213688908U (en) | Vacuum box life test machine | |
| CN215676847U (en) | Height detection device | |
| CN111007388A (en) | A frock for pressfitting test | |
| CN220251549U (en) | Wire and cable test fixture | |
| CN219935919U (en) | PCBA veneer ageing test anchor clamps | |
| CN220304722U (en) | Device for measuring operating force of bullet locking machine | |
| CN215448734U (en) | Tensile property detection device for electric appliance connecting wire | |
| CN212008823U (en) | A frock for pressfitting test |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |