Spring pin type test tool for testing B-mode ultrasound line bare board PCB

Abstract

The utility model discloses an elastic needle type test tool for testing a B-mode ultrasound line bare board PCB, which comprises a B-mode ultrasound line bare board PCB positioning plate, an elastic needle mounting plate and a lifting device, at least one tool groove is arranged on the B-mode ultrasound line bare board PCB positioning plate, the interior of the tool groove is used for positioning the B-mode ultrasound line bare board PCB to be detected, and a plurality of electric connection positions are arranged on the B-mode ultrasound line bare board PCB; the vibrating needle mounting plate is arranged above the B ultrasonic line bare board PCB positioning plate, a plurality of metal vibrating needles are vertically mounted on the vibrating needle mounting plate, the metal vibrating needles are vertically opposite to the positions of electric connection positions of the B ultrasonic line bare board PCB, and the upper ends of the metal vibrating needles are connected with detection lines; the lifting device is used for driving the vibrating needle mounting plate to ascend or descend, and when the vibrating needle mounting plate descends, the metal vibrating needles can be driven to descend and make contact with the corresponding electric connection positions. According to the utility model, on the premise that the connector is not welded, the metal vibrating needle is utilized to contact with the electric connection position on the B-mode ultrasound line bare board PCB, so that the purpose of directly and quickly testing the B-mode ultrasound line bare board PCB is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB testing tooling, in particular to a spring-type testing tooling for testing a bare PCB (printed circuit board) on a B-ultrasound line. Background Art

[0002] B-ultrasound examination, commonly known as "B-ultrasound", is a medical examination item that patients often encounter when they visit the doctor. In clinical practice, it is widely used in the diagnosis of cardiology, gastroenterology, urology and obstetrics and gynecology diseases. B-ultrasound machine has the advantages of being non-invasive, convenient for examination, relatively low price and quick reporting, which is unmatched by other imaging diagnostic technologies. The probe is one of the important components of the B-ultrasound machine, which is responsible for transmitting and receiving sound waves and converting energy. The probe is connected to the B-ultrasound host through a B-ultrasound line. Inside the probe, there is a probe PCB. The structure of the probe PCB can be found in Figure 3 One end of the probe PCB is connected to multiple B-ultrasound lines. The probe PCB is provided with multiple electrical connection points, which are solder pads or connection sockets. Connectors or sockets need to be soldered onto these electrical connection points. A probe PCB without a connector or socket is called a B-ultrasound line bare board PCB. In the prior art, because B-ultrasound line bare boards do not have connectors or sockets, they cannot be directly tested. The usual practice is to solder connectors or sockets onto the B-ultrasound line bare board PCB before testing the PCB and B-ultrasound lines. However, the technical problems with this testing method are: 1) When a test anomaly occurs, it is unclear whether the problem lies with the B-ultrasound line bare board PCB itself or with the connector or socket; 2) Soldering connectors or sockets onto the B-ultrasound line bare board PCB is cumbersome, making it difficult to batch test every B-ultrasound line bare board PCB. Another testing method involves using a multimeter to test the electrical connection points on the B-ultrasound line bare board PCB one by one. This is cumbersome for employees, prone to omissions, and takes a long time to test. In view of this, how to directly and quickly test the bare PCB of the B-ultrasound line without soldering the connector has become a technical problem that technicians in this field urgently need to solve. Utility Model Content

[0003] The technical problem to be solved by the present invention is to provide a spring-type test fixture for testing a bare B-ultrasound line PCB based on the deficiencies of the existing technology. The spring-type test fixture can use metal spring needles to contact the electrical connection points on the bare B-ultrasound line PCB without soldering connectors, thereby achieving the purpose of directly and quickly testing the bare B-ultrasound line PCB.

[0004] In order to solve the above technical problems, the technical solution of the utility model is: a spring-type test tool for testing a bare B-ultrasound line PCB, comprising a bare B-ultrasound line PCB positioning plate, a spring-type needle mounting plate and a lifting device, wherein at least one tooling groove is provided on the bare B-ultrasound line PCB positioning plate, and the tooling groove is used to position the bare B-ultrasound line PCB to be tested, and the bare B-ultrasound line PCB has a plurality of electrical connection positions; the spring-type needle mounting plate is arranged above the bare B-ultrasound line PCB positioning plate, and a plurality of metal spring-type needles are vertically mounted on the spring-type needle mounting plate, the metal spring-type needles are positioned opposite to the electrical connection positions of the bare B-ultrasound line PCB up and down, and the upper ends of the metal spring-type needles are connected to the detection wires; the lifting device is used to drive the spring-type needle mounting plate to rise or fall, and when the spring-type needle mounting plate falls, it can drive the metal spring-type needles to fall and contact the corresponding electrical connection positions, and when the spring-type needle mounting plate rises, it can drive the metal spring-type needles to break contact with the corresponding electrical connection positions.

[0005] Preferably, a clamping block for clamping the bare B-ultrasound line PCB is provided at one end of the tooling groove, and a clamping screw is provided on the clamping block.

[0006] Preferably, four tooling grooves are provided on the B-ultrasound line bare board PCB positioning plate, and four groups of metal spring pins and four groups of detection lines are correspondingly provided on the spring pin mounting plate.

[0007] Preferably, a plurality of guide rods are vertically mounted on the B-ultrasound line bare board PCB positioning plate, a plurality of sliding sleeves are mounted on the elastic needle mounting plate, and the upper ends of the guide rods slide through the corresponding sliding sleeves.

[0008] Preferably, the pogo pin test fixture further comprises a base and a support plate, wherein the support plate is vertically mounted on the base, and the B-ultrasound line bare board PCB positioning plate is horizontally mounted on the upper end of the support plate. Two support plates are provided, one of which is vertically mounted on one end of the base, and the other is vertically mounted on the other end of the base.

[0009] Preferably, the pin-type test fixture further comprises a support stand, the support stand is vertically mounted on the rear end of the base, and the lifting device is mounted on the upper end of the support stand.

[0010] Preferably, the lifting device includes a support plate, a handle rod and a lifting rod. The support plate is fixedly mounted on the upper end of the support stand, and the lifting rod is vertically mounted on the spring pin mounting plate. The middle part of the handle rod is movably hinged to the upper end of the support plate, the front end of the handle rod is movably hinged to the upper end of the lifting rod, and a handle is provided at the rear end of the handle rod.

[0011] Preferably, the lifting device includes a cylinder, which is vertically installed on the upper end of the supporting frame, and the cylinder telescopic rod of the cylinder extends downward and is connected to the elastic pin mounting plate.

[0012] The beneficial effects of the present invention are as follows: since the tooling groove for positioning the B-ultrasound line bare board PCB to be detected is provided on the B-ultrasound line bare board PCB positioning plate, the spring pin mounting plate is arranged above the B-ultrasound line bare board PCB positioning plate, and a plurality of metal spring pins are vertically mounted on the spring pin mounting plate. The metal spring pins are positioned relative to the electrical connection positions of the B-ultrasound line bare board PCB up and down, and the upper ends of the metal spring pins are connected to the detection lines. The lifting device is used to drive the spring pin mounting plate to rise or fall. When the spring pin mounting plate falls, it can drive the metal spring pins to fall and contact the corresponding electrical connection positions. When the spring pin mounting plate rises, it can drive the metal spring pins to break away from the corresponding electrical connection positions. Therefore, the present invention has the following advantages in positioning the B-ultrasound line bare board PCB: When conducting CB testing, there is no need to solder connectors or sockets on the bare B-ultrasound line PCB, nor is there any need to use a multimeter to measure the electrical connection points on the bare B-ultrasound line PCB one by one. Instead, the bare B-ultrasound line PCB needs to be installed in the tooling groove, and then the spring pin mounting plate is driven down to make the metal spring pins on the spring pin mounting plate contact the corresponding electrical connection points, and the test equipment is connected through the detection line on the upper end of the metal spring pin, so that each electrical connection point on the bare B-ultrasound line PCB can be connected to the test equipment through the test tool, and finally the test of the bare B-ultrasound line PCB is completed, so that the bare B-ultrasound line PCB meets the quality requirements while being more convenient to test, shortening the test time, and ensuring the reliability of product performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0014] Figure 2 This is a schematic diagram of the top view of the bare PCB positioning board of the B-ultrasound line.

[0015] Figure 3 This is a structural diagram of the bare PCB of the B-ultrasound line. DETAILED DESCRIPTION

[0016] The structural principle and working principle of the present invention are further described in detail below with reference to the accompanying drawings.

[0017] like Figure 3The figure shows a schematic diagram of the structure of a bare B-ultrasound line PCB 100 to be tested by the present invention. One end of the bare B-ultrasound line PCB 100 is connected to multiple B-ultrasound lines 101. The bare B-ultrasound line PCB 100 is provided with multiple electrical connection points 102. The electrical connection points 102 are structured with metal sockets or pads, and each electrical connection point 102 is electrically connected to one B-ultrasound line 101. In the subsequent process of the bare B-ultrasound line PCB 100, a connector or female socket (not shown) needs to be soldered on the electrical connection points 102 on the bare B-ultrasound line PCB 100. However, before entering the subsequent process, the bare B-ultrasound line PCB 100 needs to be tested to test whether the signal transmission between the electrical connection points 102 of the bare B-ultrasound line PCB 100 and the B-ultrasound line 101 is smooth.

[0018] like Figure 1 and Figure 2 As shown, combined with reference Figure 3 The utility model is a spring-type test tool for testing a bare PCB of a B-ultrasound line, comprising a bare PCB positioning plate 1 for a B-ultrasound line, a spring-type test tool 2, and a lifting device. The bare PCB positioning plate 1 for a B-ultrasound line is provided with at least one tooling groove 11, wherein the tooling groove 11 is used to position the bare PCB 100 of the B-ultrasound line to be tested, and the bare PCB 100 of the B-ultrasound line is provided with a plurality of electrical connection positions 102; the spring-type test tool 2 is arranged above the bare PCB positioning plate 1 for a B-ultrasound line, and a plurality of metal spring-type test tools 3 are vertically mounted on the spring-type test tool 2. The metal spring-type test tools 3 are located vertically opposite to the electrical connection positions 102 of the bare PCB of the B-ultrasound line, and the upper ends of the metal spring-type test tools 3 are connected to the test wires 31; the lifting device is used to drive the spring-type test tool 2 to rise or fall. When the spring-type test tool 2 falls, the metal spring-type test tools 3 can be driven to fall and contact the corresponding electrical connection positions 102. When the spring-type test tool 2 rises, the metal spring-type test tools 3 can be driven to break contact with the corresponding electrical connection positions 102. The present invention adopts the metal spring pin 3 with a spring in the prior art. When the lower end of the metal spring pin 3 contacts the electrical connection position 102 of the B-ultrasound line bare board PCB100, it has an elastic buffering effect to avoid damaging the B-ultrasound line bare board PCB100.

[0019] The testing method of the present invention is as follows: first, the lifting device drives the elastic needle mounting plate 2 to rise; then, the B-ultrasound line bare board PCB100 is installed in the tooling groove 11 of the B-ultrasound line bare board PCB positioning plate 1; then, the lifting device drives the elastic needle mounting plate 2 to descend, driving the metal elastic needle 3 to descend and contact the corresponding electrical connection position 102; then, the B-ultrasound line 101 of the B-ultrasound line bare board PCB100 is connected to the detection equipment, and the detection line 31 at the upper end of the metal elastic needle 3 is also connected to the detection equipment, and the test is performed. After the test is completed, the lifting device drives the elastic needle mounting plate 2 to rise again, driving the metal elastic needle 3 to disengage from the corresponding electrical connection position 102; finally, the B-ultrasound line bare board PCB100 is taken out from the tooling groove 11 of the B-ultrasound line bare board PCB positioning plate 1 to complete the test.

[0020] like Figure 1 and Figure 2 As shown, one end of the tooling groove 11 is provided with a clamping block 111 for clamping the B-ultrasound line bare board PCB, and a clamping screw 112 is provided on the clamping block.

[0021] like Figure 1 and Figure 2 As shown, four tooling grooves 11 are provided on the B-ultrasound line bare board PCB positioning plate 1, and four groups of metal elastic needles 3 and four groups of detection lines 31 are correspondingly provided on the elastic needle mounting plate 2.

[0022] like Figure 1 and Figure 2 As shown, a plurality of guide rods 4 are vertically mounted on the B-ultrasound line bare board PCB positioning plate 1, and a plurality of sliding sleeves 5 are mounted on the elastic needle mounting plate 2. The upper ends of the guide rods 4 slide through the corresponding sliding sleeves 5. By providing the guide rods 4 and the sliding sleeves 5, the elastic needle mounting plate 2 can be stably raised or lowered.

[0023] like Figure 1 As shown, the pinhole test fixture also includes a base 6 and a support plate 7. The support plate 7 is vertically mounted on the base 6, and the B-ultrasound line bare board PCB positioning plate 1 is horizontally mounted on the upper end of the support plate 7. There are two support plates 7, one of which is vertically mounted on one end of the base 6, and the other support plate 7 is vertically mounted on the other end of the base 6. The pinhole test fixture also includes a support stand 8, which is vertically mounted on the rear end of the base 1. The lifting device is mounted on the upper end of the support stand 8.

[0024] The lifting device of the present utility model has two structures. The first structure is as follows: Figure 1As shown, the lifting device includes a support plate 91, a handle rod 92 and a lifting rod 93. The support plate 91 is fixedly mounted on the upper end of the support stand 8, and the lifting rod 93 is vertically mounted on the spring pin mounting plate 2. The middle part of the handle rod 92 is movably hinged to the upper end of the support plate 91, and the front end of the handle rod 92 is movably hinged to the upper end of the lifting rod 93. The rear end of the handle rod 92 is provided with a handle 921.

[0025] The second structure of the lifting device includes a cylinder (not shown), which is vertically installed on the upper end of the supporting frame. The cylinder telescopic rod of the cylinder extends downward and is connected to the elastic pin mounting plate 2.

[0026] The above description is only a preferred embodiment of the present invention. Any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical solution of the present invention are within the scope of the technical solution of the present invention.

Claims

1. A pinhole test fixture for testing bare PCBs on a B-ultrasound line, characterized by: It includes a B-ultrasound line bare board PCB positioning plate, a spring pin mounting plate and a lifting device. The B-ultrasound line bare board PCB positioning plate is provided with at least one tooling groove. The tooling groove is used to position the B-ultrasound line bare board PCB to be tested, and the B-ultrasound line bare board PCB has several electrical connection positions. The spring pin mounting plate is arranged above the B-ultrasound line bare board PCB positioning plate. Several metal spring pins are vertically installed on the spring pin mounting plate. The positions of the metal spring pins and the electrical connection positions of the B-ultrasound line bare board PCB are opposite to each other, and the upper ends of the metal spring pins are connected to the detection lines. The lifting device is used to drive the spring pin mounting plate to rise or fall. When the spring pin mounting plate falls, it can drive the metal spring pins to fall and contact the corresponding electrical connection positions. When the spring pin mounting plate rises, it can drive the metal spring pins to break contact with the corresponding electrical connection positions.

2. The pinhole-type testing tool for testing bare PCBs using a B-ultrasound line according to claim 1, characterized in that: One end of the tooling groove is provided with a clamping block for clamping the bare board PCB of the B-ultrasound line, and a clamping screw is provided on the clamping block.

3. The pinhole-type testing tool for testing bare PCBs using a B-ultrasound line according to claim 1, characterized in that: Four tooling grooves are provided on the B-ultrasound line bare board PCB positioning plate, and four groups of metal spring needles and four groups of detection lines are correspondingly provided on the spring needle mounting plate.

4. The pinhole-type testing tool for testing bare PCBs using a B-ultrasound line according to claim 1, characterized in that: A plurality of guide rods are vertically mounted on the B-ultrasound line bare board PCB positioning plate, a plurality of sliding sleeves are mounted on the elastic needle mounting plate, and the upper ends of the guide rods slide through the corresponding sliding sleeves.

5. The pinhole-type testing tool for testing bare PCBs using a B-ultrasound line according to claim 4, characterized in that: The pinhole test fixture further includes a base and a support plate, wherein the support plate is vertically mounted on the base, and the B-ultrasound line bare board PCB positioning plate is horizontally mounted on the upper end of the support plate.

6. The pinhole-type testing tool for testing bare PCBs using a B-ultrasound line according to claim 5, characterized in that: There are two support plates, one of which is vertically installed on one end of the base, and the other is vertically installed on the other end of the base.

7. The pinhole-type testing tool for testing bare PCBs using a B-ultrasound line according to claim 5, characterized in that: The pin-type test fixture further includes a support stand, which is vertically mounted on the rear end of the base, and the lifting device is mounted on the upper end of the support stand.

8. The spring-type testing tool for testing bare PCBs using a B-ultrasound line according to claim 7, characterized in that: The lifting device includes a support plate, a handle rod and a lifting rod. The support plate is fixedly installed on the upper end of the supporting frame. The lifting rod is vertically installed on the spring pin mounting plate. The middle part of the handle rod is movably hinged to the upper end of the support plate, the front end of the handle rod is movably hinged to the upper end of the lifting rod, and the rear end of the handle rod is provided with a handle.

9. The pinhole-type testing tool for testing bare PCBs using a B-ultrasound line according to claim 7, characterized in that: The lifting device includes a cylinder, which is vertically installed on the upper end of the supporting frame. The cylinder telescopic rod of the cylinder extends downward and is connected to the elastic pin mounting plate.

Images