Dispensing pressure regulating valve for power module

Abstract

The utility model provides a kind of power module point gum pressure regulating valve, including pressure regulating valve body, the pressure regulating valve body includes needle valve and needle head being set in the needle valve, further include multiple support components sequentially screwed along the needle head length direction, first the support component is connected with the needle valve by screw thread, and the support component is provided with the support surface of abutting the needle head. By flexibly adjusting the number of support components, the exposed length of the needle is adjusted, so that the point gum pressure regulating valve can adapt to various different point gum scenarios. For example, when point gum in a small space, the needle is lengthened by disassembling the number of support components. For scenarios that do not require an excessively long needle, the risk of bending caused by the excessively long exposed length of the needle can be avoided by increasing the number of support components.

Description

Technical Field

[0001] This utility model relates to the field of dispensing valve technology, specifically to a power module dispensing pressure regulating valve. Background Technology

[0002] In existing technologies, dispensing technology is widely used as a key process in many fields such as electronic manufacturing and precision mechanical assembly, for bonding, sealing, and potting. The dispensing pressure regulating valve (dispensing valve), as one of the core components of the dispensing system, primarily functions to control the flow rate and dispensing accuracy of the adhesive by adjusting the pressure, in order to meet the stringent requirements of different products and processes for dispensing effects.

[0003] For example, Chinese patent document CN212652101U discloses a high-precision, high-efficiency jet dispensing valve, whose needle design is typically much longer than that of a needle valve. This design is mainly based on the need for dispensing in confined spaces. The longer needle allows the adhesive to be accurately delivered to these hard-to-reach confined spaces, ensuring that the adhesive can fully fill the target area, thereby guaranteeing the assembly quality and performance stability of the product.

[0004] However, in practical applications, not all dispensing scenarios require such a long needle. When faced with dispensing tasks where space constraints are not stringent, such as bonding large-area planar surfaces or sealing regularly shaped components, an excessively long needle can lead to a series of adverse effects. First, longer needles face a higher risk of bending and deformation during use. Due to their slender shape, the needle is prone to bending and deformation under the combined influence of small lateral forces, the reaction force generated by adhesive flow, and equipment vibration. This bending and deformation directly compromises dispensing accuracy, resulting in inconsistencies in the shape and size of the formed adhesive dots. Furthermore, after the needle bends and deforms, additional time and costs are required for repair or replacement, which undoubtedly reduces production efficiency, increases production costs, and negatively impacts the company's economic benefits. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to propose a power module dispensing pressure regulating valve to solve the problems mentioned in the background section above.

[0006] This utility model is achieved through the following technical solution:

[0007] A power module dispensing pressure regulating valve includes a pressure regulating valve body, the pressure regulating valve body including a needle valve and a needle disposed in the needle valve, and further including a plurality of support components threadedly connected in sequence along the length direction of the needle, the first of the support components being threadedly connected to the needle valve, and the support component having a support surface abutting against the needle.

[0008] Furthermore, the support assembly includes a connecting shell, which includes an upper connecting portion and a lower connecting portion. The upper connecting portion has an internal thread on its inner periphery, and the lower connecting portion has an external thread on its outer periphery. The needle passes through the connecting shell.

[0009] Furthermore, the support assembly also includes a positioning shell and a rolling ball, the rolling ball rolling in the positioning shell, the positioning shell being embedded inside the lower connecting portion, and the outer peripheral surface of the rolling ball abutting against the needle and forming the support surface.

[0010] Furthermore, the needle is tapered, and the support assembly also includes a spring disposed between the positioning shell and the rolling ball, through which the rolling ball abuts against the needle.

[0011] Furthermore, each of the connecting shells is provided with at least two sets of rolling balls arranged vertically at intervals.

[0012] Furthermore, the support assembly also includes a rubber buffer layer sleeved on the outer periphery of the upper connecting portion.

[0013] Furthermore, the needle extends beyond the support assembly by a length greater than or equal to 2 mm.

[0014] The beneficial effects of this utility model are as follows: A power module dispensing pressure regulating valve includes a valve body, which includes a needle valve and a needle disposed in the needle valve. It also includes multiple support components threaded sequentially along the length of the needle. The first support component is threadedly connected to the needle valve, and each support component has a support surface that abuts against the needle. By flexibly adjusting the number of support components, the exposed length of the needle can be adjusted, allowing the dispensing pressure regulating valve to adapt to various dispensing scenarios. For example, when dispensing in confined spaces, the needle can be lengthened by disassembling the support components; conversely, for scenarios where an excessively long needle is not required, increasing the number of support components can avoid the bending risk caused by an excessively long exposed needle. Attached Figure Description

[0015] Figure 1 This is a 3D view of the dispensing pressure regulating valve when the exposed needle length is reduced.

[0016] Figure 2 This is a 3D view of the dispensing pressure regulating valve when the exposed needle length is increased.

[0017] Figure 3 This is a perspective view of the support component of this utility model.

[0018] Figure 4 This is a centered cross-sectional view of the connection between the needle valve and the support assembly in Embodiment 1.

[0019] Figure 5 This is a centered cross-sectional view of the connection between the needle valve and the support assembly in Embodiment 2.

[0020] The above figures include the following reference numerals:

[0021] 1. Pressure regulating valve body; 11. Needle valve; 12. Needle; 2. Support assembly; 21. Connecting shell; 211. Upper connecting part; 212. Lower connecting part; 22. Positioning shell; 23. Rolling ball; 24. Spring; 25. Rubber buffer layer. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. It should be noted that the description of these embodiments is intended to aid in understanding this utility model, but does not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0023] Reference Figures 1 to 5 As shown, a power module dispensing pressure regulating valve includes a pressure regulating valve body 1. The pressure regulating valve body 1 includes a needle valve 11 and a needle 12 disposed in the needle valve 11. Other components of the pressure regulating valve body 1 and the connection method between the needle valve 11 and the needle 12 are existing technologies and will not be described in detail here.

[0024] The improvement of this utility model is that it also includes a plurality of support components 2 that are threadedly connected in sequence along the length direction of the needle 12, the first support component 2 being threadedly connected to the needle valve 11, and the support component 2 having a support surface that abuts against the needle 12.

[0025] By flexibly adjusting the number of support components 2, the exposed length of the needle 12 can be adjusted, allowing the dispensing pressure regulating valve to adapt to various dispensing scenarios. For example, when dispensing in confined spaces, the needle 12 can be extended by disassembling the number of support components 2; while for scenarios where an excessively long needle 12 is not required, the bending risk caused by an excessively long exposed length of the needle 12 can be avoided by increasing the number of support components 2.

[0026] Reference Figure 1As shown, when the exposed length of the needle 12 is reduced, an external thread is provided on the outer periphery of the needle valve 11, and then the first support component 2 is threadedly connected to the needle valve 11. Subsequently, multiple support components 2 are connected to each other along the length direction of the needle 12 through the threaded structure. The support surface on the support component 2 can effectively abut against the needle 12, providing stable support force for the needle 12, effectively reducing the possibility of the needle 12 bending and deforming due to external force or its own excessive length during operation, ensuring that the needle 12 is always in the ideal position during the dispensing process, and maintaining the stability and accuracy of dispensing.

[0027] By supporting component 2, the probability of needle 12 bending and deformation is reduced, and unnecessary wear and tear on other components caused by inaccurate dispensing is also reduced. Overall, the service life of dispensing pressure regulating valve and related equipment is extended, the number of times needle 12 needs to be replaced is reduced, equipment maintenance costs and downtime are reduced, production efficiency is improved, and enterprises can better control costs and schedules during the production process.

[0028] Reference Figure 2 As shown, when increasing the exposed length of the needle 12, the exposed length of the needle 12 can be increased by disassembling the support assembly 2 from bottom to top, thus making it suitable for narrow dispensing spaces.

[0029] The operation of increasing or decreasing the exposed length of the needle 12 is convenient. The operator does not need complicated tools or cumbersome operations. The exposed length of the needle 12 can be quickly changed according to actual needs by simply connecting or disassembling the support component 2 through a simple thread connection. This greatly shortens the adjustment time, improves production efficiency, and enables the dispensing pressure regulating valve to cope more flexibly with different dispensing tasks and product specification changes.

[0030] Reference Figure 3 As shown, the support assembly 2 includes a connecting shell 21, which includes an upper connecting portion 211 and a lower connecting portion 212. The upper connecting portion 211 has an internal thread on its inner periphery, and the lower connecting portion 212 has an external thread on its outer periphery. The needle 12 passes through the connecting shell 21. When two adjacent support assemblies 2 are connected, the external thread of the upper connecting portion 211 is threaded to the internal thread of the lower connecting portion 212 of the other support assembly 2, making the connection operation convenient.

[0031] Reference Figure 4As shown, the support assembly 2 further includes a positioning shell 22 and a rolling ball 23. The rolling ball 23 rolls within the positioning shell 22, which is embedded inside the lower connecting portion 212. The outer circumferential surface of the rolling ball 23 abuts against the needle 12 and forms the support surface. By abutting against the needle 12, the rolling ball 23 reduces friction during the tightening process of the support assembly 2 via its own rolling motion, preventing wear on the outer circumferential surface of the needle 12 during the insertion of the connecting shell 21.

[0032] Reference Figure 5 As shown, the needle 12 is conical, and the support assembly 2 also includes a spring 24. The spring 24 is disposed between the positioning shell 22 and the rolling ball 23, and the rolling ball 23 abuts against the needle 12 by means of the spring 24.

[0033] The tapered needle 12 has an extremely fine tip, enabling precise control of the glue's flow position and volume, making it suitable for high-precision dispensing tasks. The diameter of the tapered needle 12 gradually decreases along its length, requiring different support forces at different positions. The spring 24 automatically adjusts the pressure of the rolling ball 23 on the needle 12 based on the change in the needle's taper.

[0034] Reference Figure 5 As shown, each of the connecting shells 21 contains at least two sets of rolling balls 23 arranged vertically at intervals. Each set of rolling balls 23 is arranged around the needle 12 in the horizontal direction, and the number of the same set of rolling balls 23 on the same horizontal plane is greater than or equal to two. Multiple sets of rolling balls 23 are arranged at intervals in the vertical direction, and each set is evenly distributed around the needle 12 in the horizontal direction, forming multiple support points to provide all-round and balanced support for the needle 12, effectively preventing the needle 12 from shaking, deviating or bending during the dispensing process, and improving the stability and accuracy of dispensing.

[0035] Furthermore, the support component 2 also includes a rubber buffer layer 25 sleeved around the outer periphery of the upper connecting portion 211. Due to the rubber material used, the rubber buffer layer 25 has good elasticity and damping characteristics. During the dispensing process, when subjected to external impact, the rubber buffer layer 25 absorbs part of the impact force.

[0036] The needle 12 extends beyond the support component 2 by a length greater than or equal to 2 mm, thereby ensuring that the adhesive on the needle 12 does not come into contact with the support component 2 during release. This prevents adhesive from adhering to the connection between the support component 2 and the needle 12, which would make disassembly difficult.

[0037] As an extension of the embodiment, to facilitate the threaded connection of the connecting shell 21 using a wrench, the outer peripheral surface of the upper connecting part 211 can be configured as a hexagonal head structure. As an extension of the embodiment, the outer peripheral surface of the upper connecting part 211 can be provided with symmetrical snap-fit ​​surfaces on both sides, so that when a tool such as a wrench is used, the inner wall of the wrench can tightly fit against these two surfaces. Both of these are existing structures and will not be described further here.

[0038] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0039] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature.

[0040] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A power module dispensing pressure regulating valve, comprising a pressure regulating valve body (1), wherein the pressure regulating valve body (1) includes a needle valve (11) and a needle (12) disposed in the needle valve (11), characterized in that: It also includes a plurality of support components (2) that are threaded together sequentially along the length of the needle (12), the first support component (2) being threadedly connected to the needle valve (11), and the support component (2) having a support surface that abuts against the needle (12).

2. The power module dispensing pressure regulating valve according to claim 1, characterized in that: The support assembly (2) includes a connecting shell (21), which includes an upper connecting part (211) and a lower connecting part (212). The upper connecting part (211) has an internal thread on its inner periphery, and the lower connecting part (212) has an external thread on its outer periphery. The needle (12) passes through the connecting shell (21).

3. The power module dispensing pressure regulating valve according to claim 2, characterized in that: The support assembly (2) further includes a positioning shell (22) and a rolling ball (23). The rolling ball (23) rolls in the positioning shell (22). The positioning shell (22) is embedded in the inner side of the lower connecting part (212). The outer peripheral surface of the rolling ball (23) abuts against the needle (12) and forms the support surface.

4. The power module dispensing pressure regulating valve according to claim 3, characterized in that: The needle (12) is conical, and the support assembly (2) also includes a spring (24), which is disposed between the positioning shell (22) and the rolling ball (23). The rolling ball (23) is made to abut against the needle (12) by means of the spring (24).

5. A power module dispensing pressure regulating valve according to claim 4, characterized in that: Each of the connecting shells (21) is provided with at least two sets of rolling balls (23) arranged at intervals.

6. A power module dispensing pressure regulating valve according to claim 2, characterized in that: The support component (2) also includes a rubber buffer layer (25) sleeved on the outer periphery of the upper connecting part (211).

7. A power module dispensing pressure regulating valve according to claim 1, characterized in that: The needle (12) extends out of the support component (2) by a length greater than or equal to 2 mm.

Images